Factorizations of 88...887 2008-10-09(Thu) 22:56
Last update
Oct 9, 2008 22:56 JST
Sequence
7, 87, 887, 8887, 88887, ...
General term
(8·10n -17)/9
Room for prime numbers
upper limit of periods: 10000
upper limit of periodical factors: 4294967296
checked terms: 100000000
terms divided by periodical factors: 81508601
room for prime numbers: 18.49%
Prime numbers
(8·101 -17)/9 = 7 is prime. (Makoto Kamada / Jun 13, 2003)
(8·103 -17)/9 = 887 is prime. (Makoto Kamada / Jun 13, 2003)
(8·104 -17)/9 = 8887 is prime. (Makoto Kamada / Jun 13, 2003)
(8·106 -17)/9 = 888887 is prime. (Makoto Kamada / Jun 13, 2003)
(8·109 -17)/9 = 888888887 is prime. (Makoto Kamada / Jun 13, 2003)
(8·1012 -17)/9 = ( 8) 11 7<12> is prime. (Makoto Kamada / Jun 13, 2003)
(8·1072 -17)/9 = ( 8) 71 7<72> is prime. (Makoto Kamada / PPSIQS / Jun 13, 2003)
(8·10118 -17)/9 = ( 8) 117 7<118> is prime. (Makoto Kamada / PPSIQS / Jun 13, 2003)
(8·10124 -17)/9 = ( 8) 123 7<124> is prime. (Makoto Kamada / PPSIQS / Jun 13, 2003)
(8·10190 -17)/9 = ( 8) 189 7<190> is prime. (Makoto Kamada / pock 0.1.1a / Jun 13, 2003)
(8·10244 -17)/9 = ( 8) 243 7<244> is prime. (Makoto Kamada / PPSIQS / Jun 13, 2003)
(8·10304 -17)/9 = ( 8) 303 7<304> is prime. (Julien Peter Benney / http://www.alpertron.com.ar/ECM.HTM / Dec 1, 2004)
(8·10357 -17)/9 = ( 8) 356 7<357> is prime. (searched by Makoto Kamada / PFGW / Dec 23, 2004) (certified by Makoto Kamada / PFGW / Jan 5, 2005)
(8·101422 -17)/9 = ( 8) 1421 7<1422> is prime. (searched by Makoto Kamada / PFGW / Dec 23, 2004) (certified by Makoto Kamada / PFGW / Jan 5, 2005)
(8·102691 -17)/9 = ( 8) 2690 7<2691> is PRP. (Makoto Kamada / PFGW / Dec 23, 2004)
(8·105538 -17)/9 = ( 8) 5537 7<5538> is PRP. (Makoto Kamada / PFGW / Dec 23, 2004)
(8·107581 -17)/9 = ( 8) 7580 7<7581> is PRP. (Makoto Kamada / PFGW / Dec 29, 2004)
Searched:
References:
A056695 (On-Line Encyclopedia of Integer Sequences)
A093171 (On-Line Encyclopedia of Integer Sequences)
Condition
n≤200
Status
Completed up to n=100. (Jun 13, 2003)
Completed up to n=150. (Oct 2, 2004)
The following numbers are not factored yet. (n≤200)
n= 173 , 180 , 181 , 182 , 183 , 184 , 187 , 188 , 189 , 196 , 198 , 199 , 200 (13/200)
Factorization results
(8·101 -17)/9 =7 = definitely prime number
(8·102 -17)/9 =87 = 3 · 29
(8·103 -17)/9 =887 = definitely prime number
(8·104 -17)/9 =8887 = definitely prime number
(8·105 -17)/9 =88887 = 3 · 29629
(8·106 -17)/9 =888887 = definitely prime number
(8·107 -17)/9 =8888887 = 7 · 313 · 4057
(8·108 -17)/9 =88888887 = 33 · 227 · 14503
(8·109 -17)/9 =888888887 = definitely prime number
(8·1010 -17)/9 =8888888887<10> = 67453 · 131779
(8·1011 -17)/9 =88888888887<11> = 3 · 19 · 1559454191<10>
(8·1012 -17)/9 =888888888887<12> = definitely prime number
(8·1013 -17)/9 =8888888888887<13> = 7 · 701 · 1811471141<10>
(8·1014 -17)/9 =88888888888887<14> = 3 · 151 · 2423 · 80983373
(8·1015 -17)/9 =888888888888887<15> = 23 · 113 · 28393 · 12045641
(8·1016 -17)/9 =8888888888888887<16> = 107 · 181 · 4787 · 95878603
(8·1017 -17)/9 =88888888888888887<17> = 32 · 653 · 26759 · 565225709
(8·1018 -17)/9 =888888888888888887<18> = 60614549 · 14664612763<11>
(8·1019 -17)/9 =8888888888888888887<19> = 7 · 683 · 1859211229635827<16>
(8·1020 -17)/9 =88888888888888888887<20> = 3 · 26083 · 1135974758640863<16>
(8·1021 -17)/9 =888888888888888888887<21> = 89 · 7019 · 8389 · 169618037513<12>
(8·1022 -17)/9 =8888888888888888888887<22> = 211 · 29207 · 1442374618836731<16>
(8·1023 -17)/9 =88888888888888888888887<23> = 3 · 29629629629629629629629<23>
(8·1024 -17)/9 =888888888888888888888887<24> = 353 · 9438203 · 266798545801493<15>
(8·1025 -17)/9 =8888888888888888888888887<25> = 72 · 181405895691609977324263<24>
(8·1026 -17)/9 =88888888888888888888888887<26> = 32 · 9876543209876543209876543<25>
(8·1027 -17)/9 =888888888888888888888888887<27> = 7237 · 30687353 · 4002482814237667<16>
(8·1028 -17)/9 =8888888888888888888888888887<28> = 61 · 85669 · 126127 · 277157 · 48658646837<11>
(8·1029 -17)/9 =88888888888888888888888888887<29> = 3 · 19 · 121930121 · 283432241 · 45124496231<11>
(8·1030 -17)/9 =888888888888888888888888888887<30> = 29 · 359311 · 7099887023<10> · 12015103842851<14>
(8·1031 -17)/9 =8888888888888888888888888888887<31> = 7 · 283 · 4487071624880812159964103427<28>
(8·1032 -17)/9 =88888888888888888888888888888887<32> = 3 · 2729 · 69431933 · 156373598692984174297<21>
(8·1033 -17)/9 =888888888888888888888888888888887<33> = 4406393393<10> · 201727083719074759625959<24>
(8·1034 -17)/9 =8888888888888888888888888888888887<34> = 191 · 727 · 5801 · 28529945497<11> · 386790583001503<15>
(8·1035 -17)/9 =88888888888888888888888888888888887<35> = 33 · 13931 · 69877 · 70067 · 18999517 · 2540452541317<13>
(8·1036 -17)/9 =888888888888888888888888888888888887<36> = 100987 · 8802013020377760393802062531701<31>
(8·1037 -17)/9 =8888888888888888888888888888888888887<37> = 7 · 23 · 1769507 · 13265561 · 2352034542062031047621<22>
(8·1038 -17)/9 =88888888888888888888888888888888888887<38> = 3 · 1109118952787<13> · 26714564344226684434766767<26>
(8·1039 -17)/9 =888888888888888888888888888888888888887<39> = 922166778639871<15> · 963913371722125383063497<24>
(8·1040 -17)/9 =8888888888888888888888888888888888888887<40> = 1013 · 65025411611<11> · 134944417265323481201339809<27>
(8·1041 -17)/9 =88888888888888888888888888888888888888887<41> = 3 · 491 · 60345477860752809836312891302708003319<38>
(8·1042 -17)/9 =888888888888888888888888888888888888888887<42> = 457 · 827 · 2351937452575386210179126496309957133<37>
(8·1043 -17)/9 =8888888888888888888888888888888888888888887<43> = 7 · 47440135861<11> · 26767235101558636349324372139181<32>
(8·1044 -17)/9 =88888888888888888888888888888888888888888887<44> = 32 · 47 · 210139217231415812976096664039926451273969<42>
(8·1045 -17)/9 =888888888888888888888888888888888888888888887<45> = 349 · 9752219159<10> · 1603313803069729<16> · 162892116644766133<18>
(8·1046 -17)/9 =8888888888888888888888888888888888888888888887<46> = 208741784608902539<18> · 42583179527486853115662380933<29>
(8·1047 -17)/9 =88888888888888888888888888888888888888888888887<47> = 3 · 19 · 1206837812765149<16> · 1292182076612318290389807129659<31>
(8·1048 -17)/9 =888888888888888888888888888888888888888888888887<48> = 541 · 1643047853768741014582049702197576504415691107<46>
(8·1049 -17)/9 =8888888888888888888888888888888888888888888888887<49> = 7 · 97 · 28163 · 3056338571963<13> · 152088832368496816684843340737<30>
(8·1050 -17)/9 =88888888888888888888888888888888888888888888888887<50> = 3 · 29629629629629629629629629629629629629629629629629<50>
(8·1051 -17)/9 =888888888888888888888888888888888888888888888888887<51> = 167 · 295242511 · 18028189569958292153435957177534524497151<41>
(8·1052 -17)/9 =8888888888888888888888888888888888888888888888888887<52> = 211 · 1213 · 30071 · 354971 · 3253594885576596692407719693311945749<37>
(8·1053 -17)/9 =88888888888888888888888888888888888888888888888888887<53> = 32 · 19991833 · 494028897193996328894731324029994808874030871<45>
(8·1054 -17)/9 =888888888888888888888888888888888888888888888888888887<54> = 163 · 197 · 6827 · 50461 · 26437133560841<14> · 3039439661298983104755516271<28>
(8·1055 -17)/9 =8888888888888888888888888888888888888888888888888888887<55> = 7 · 59 · 1933012124929<13> · 11134298181358123644496113605625693237731<41>
(8·1056 -17)/9 =88888888888888888888888888888888888888888888888888888887<56> = 3 · 353 · 312241 · 42623833667<11> · 6306800304008249581554133874626805519<37>
(8·1057 -17)/9 =888888888888888888888888888888888888888888888888888888887<57> = 358926406326741707242517<24> · 2476521295788156897769778684483611<34>
(8·1058 -17)/9 =8888888888888888888888888888888888888888888888888888888887<58> = 29 · 13713419 · 4423432506127<13> · 200569163448209<15> · 25193016192734218775159<23>
(8·1059 -17)/9 =88888888888888888888888888888888888888888888888888888888887<59> = 3 · 23 · 1183593627051761<16> · 1088418133607691738475197472261118554146043<43>
(8·1060 -17)/9 =888888888888888888888888888888888888888888888888888888888887<60> = 72489036701<11> · 795681390997<12> · 15411181950960642256862331335226731671<38>
(8·1061 -17)/9 =8888888888888888888888888888888888888888888888888888888888887<61> = 7 · 2583399138698192253035843<25> · 491538938300164890154578554615610587<36>
(8·1062 -17)/9 =88888888888888888888888888888888888888888888888888888888888887<62> = 34 · 70115244472396945100392491797<29> · 15651285226828323535842902667691<32>
(8·1063 -17)/9 =888888888888888888888888888888888888888888888888888888888888887<63> = 374069 · 480553 · 2454427695354751<16> · 2014671409205400336251221362847198141<37>
(8·1064 -17)/9 =8888888888888888888888888888888888888888888888888888888888888887<64> = 86414959 · 102862849114918736336944728387696034073092471048778590393<57>
(8·1065 -17)/9 =88888888888888888888888888888888888888888888888888888888888888887<65> = 3 · 19 · 89 · 1788170049332410811398967<25> · 9798820424914911855563063219386014257<37>
(8·1066 -17)/9 =888888888888888888888888888888888888888888888888888888888888888887<66> = 109 · 97459114814833<14> · 4427210250353021323<19> · 18900285729085339971073142480777<32>
(8·1067 -17)/9 =8888888888888888888888888888888888888888888888888888888888888888887<67> = 72 · 2170877 · 705375714092867<15> · 118466532576533824225858036771064297172866257<45>
(8·1068 -17)/9 =88888888888888888888888888888888888888888888888888888888888888888887<68> = 3 · 146683 · 113444331809<12> · 43582161611347803569<20> · 40855908374892126568415681389303<32>
(8·1069 -17)/9 =888888888888888888888888888888888888888888888888888888888888888888887<69> = 107 · 13829 · 349187 · 2445235810058428649135357177<28> · 703548609561832995280220329571<30>
(8·1070 -17)/9 =8888888888888888888888888888888888888888888888888888888888888888888887<70> = 131 · 548384923 · 35966255228420082558637937<26> · 3440293176217093918851567854695927<34>
(8·1071 -17)/9 =88888888888888888888888888888888888888888888888888888888888888888888887<71> = 32 · 317 · 7302739 · 3897696581<10> · 1094591064506352387955742173760621783738446947654581<52>
(8·1072 -17)/9 =888888888888888888888888888888888888888888888888888888888888888888888887<72> = definitely prime number
(8·1073 -17)/9 =8888888888888888888888888888888888888888888888888888888888888888888888887<73> = 7 · 2256469499<10> · 562755787483068407861444472306279483758198705366710494707130659<63>
(8·1074 -17)/9 =88888888888888888888888888888888888888888888888888888888888888888888888887<74> = 3 · 677 · 3359743 · 3472797583<10> · 212050236757<12> · 17689406583541876489221952093441190137266469<44>
(8·1075 -17)/9 =888888888888888888888888888888888888888888888888888888888888888888888888887<75> = 397 · 850853 · 80138890759128315800869533407<29> · 32836670077827929990802653806866157001<38>
(8·1076 -17)/9 =8888888888888888888888888888888888888888888888888888888888888888888888888887<76> = 32183 · 276198268927349497837022306462694245063819062514025693343966966687036289<72>
(8·1077 -17)/9 =88888888888888888888888888888888888888888888888888888888888888888888888888887<77> = 3 · 29629629629629629629629629629629629629629629629629629629629629629629629629629<77>
(8·1078 -17)/9 =888888888888888888888888888888888888888888888888888888888888888888888888888887<78> = 2751274269158707<16> · 10382898827009459<17> · 11496939684377821<17> · 2706529193510729307040040554219<31>
(8·1079 -17)/9 =8888888888888888888888888888888888888888888888888888888888888888888888888888887<79> = 7 · 121577 · 10444749170001479237601201459497025270156701266203885942816826125346651433<74>
(8·1080 -17)/9 =88888888888888888888888888888888888888888888888888888888888888888888888888888887<80> = 32 · 34880305741<11> · 840639640592623<15> · 336833144475857398851559010301161894136354511550445301<54>
(8·1081 -17)/9 =888888888888888888888888888888888888888888888888888888888888888888888888888888887<81> = 23 · 1187 · 9468937 · 11380616169389<14> · 302135613193555811012057794330083176970833868874773920959<57>
(8·1082 -17)/9 =8888888888888888888888888888888888888888888888888888888888888888888888888888888887<82> = 211 · 569 · 4441 · 8706463 · 20338152569677<14> · 370042997257602967<18> · 254428954331902643072604429096222569<36>
(8·1083 -17)/9 =88888888888888888888888888888888888888888888888888888888888888888888888888888888887<83> = 3 · 19 · 2113 · 2213 · 38866739 · 8580519980628989647776846708341351496533527992466040179655877857201<67>
(8·1084 -17)/9 =888888888888888888888888888888888888888888888888888888888888888888888888888888888887<84> = 2357 · 6211 · 6630853 · 20791030729669632279437<23> · 440434109244553869982929947684624017482845441321<48>
(8·1085 -17)/9 =8888888888888888888888888888888888888888888888888888888888888888888888888888888888887<85> = 7 · 409 · 2719 · 1141870680776020453073446992000753406275176018294937860325322097097460361136871<79>
(8·1086 -17)/9 =88888888888888888888888888888888888888888888888888888888888888888888888888888888888887<86> = 3 · 29 · 631 · 8623 · 8163088877<10> · 145336221956147<15> · 30771106813167047<17> · 5143621114302961835010667533262127689<37>
(8·1087 -17)/9 =888888888888888888888888888888888888888888888888888888888888888888888888888888888888887<87> = 769 · 3083 · 108252710717889764298258237829<30> · 3463449286331711787370086530012525359037445776777089<52> (Tetsuya Kobayashi / GMP-ECM 5.0.1 B1=250000)
(8·1088 -17)/9 =8888888888888888888888888888888888888888888888888888888888888888888888888888888888888887<88> = 61 · 353 · 12953 · 1517189 · 8066212145101651859<19> · 2604133511632173766134251093495852151549607911862337413<55>
(8·1089 -17)/9 =88888888888888888888888888888888888888888888888888888888888888888888888888888888888888887<89> = 33 · 151 · 7925969 · 205519392409<12> · 14293727990583137<17> · 569112856389674483<18> · 1645347666579036120218792450330041<34>
(8·1090 -17)/9 =888888888888888888888888888888888888888888888888888888888888888888888888888888888888888887<90> = 47 · 18245243 · 18733717 · 55331954662041692666191220413896539380467379068282360079546200257838855791<74>
(8·1091 -17)/9 =8888888888888888888888888888888888888888888888888888888888888888888888888888888888888888887<91> = 7 · 26879 · 382163 · 123619702109226731888986194293925359007051665077220729827069373414396467722318133<81>
(8·1092 -17)/9 =88888888888888888888888888888888888888888888888888888888888888888888888888888888888888888887<92> = 3 · 279283337550525935867940795769863543469<39> · 106091648322088852903312355734083136627738026421314641<54>
(8·1093 -17)/9 =888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888887<93> = 359 · 580733966685655106239<21> · 1924885809386036534238227613462653<34> · 2214985205660825746181983645653193979<37>
(8·1094 -17)/9 =8888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888887<94> = 42871063 · 47286409 · 539818002729091911892485864552426101<36> · 8122683422091205674144724282658680621418261<43>
(8·1095 -17)/9 =88888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888887<95> = 3 · 2167641575289763798915166679163411<34> · 13669063173264163821425690412811023023706745118790002279110639<62>
(8·1096 -17)/9 =888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888887<96> = 556153653790396695361<21> · 820317561939223243997239<24> · 1948366588348176530159300312641300680552433260981953<52>
(8·1097 -17)/9 =8888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888887<97> = 7 · 149 · 143287 · 1832371 · 81039613693<11> · 33703140610313<14> · 91487972688143<14> · 1129182870064859<16> · 115039490546454459629311636849<30>
(8·1098 -17)/9 =88888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888887<98> = 32 · 22543 · 2671309 · 35397941 · 154879440839428920671709441233<30> · 29915575132025967141714776189064157061279102004113<50>
(8·1099 -17)/9 =888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888887<99> = 127402918990945772986938184297<30> · 695604761144473408771648496543<30> · 10030106702981197564175891734719007005697<41> (Robert Backstrom / NFSX v1.8)
(8·10100 -17)/9 =8888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888887 <100> = 15269 · 6850659575623837374442084444810217299411<40> · 84977606689344202437715685183914631229507086238287797193<56> (Robert Backstrom / NFSX v1.8)
(8·10101 -17)/9 =( 8) 100 7<101> = 3 · 19 · 2985716501816559534553<22> · 522304843773459589234128913257315158070213985944974635588522950232904015453447<78>
(8·10102 -17)/9 =( 8) 101 7<102> = 5657 · 128758530617<12> · 3281537617219436647<19> · 1463207444407269901148122448576051<34> · 254156954492639107179308233623802459<36>
(8·10103 -17)/9 =( 8) 102 7<103> = 7 · 23 · 2777 · 22597320485551835403553961780765417537<38> · 879809762680304214540222035782149371418095099352497635753583<60> (Robert Backstrom / NFSX v1.8)
(8·10104 -17)/9 =( 8) 103 7<104> = 3 · 1117 · 231109 · 458086543 · 5367305905595316578792941575210557<34> · 46682306869100474346571257004561194270652852520578943<53>
(8·10105 -17)/9 =( 8) 104 7<105> = 337 · 14887 · 32617821627955348358176457<26> · 5431945887229419326734168487274417212776927299714203571221007778977780889<73>
(8·10106 -17)/9 =( 8) 105 7<106> = 1261660972086485864661721724784731807<37> · 7045386269013925371337711452495230948232840724725814650492829294766441<70> (Robert Backstrom / NFSX v1.8)
(8·10107 -17)/9 =( 8) 106 7<107> = 32 · 22248427433759<14> · 709245434802893<15> · 625905978021447631239264731135522055274904946324981703822949746354569107391589<78>
(8·10108 -17)/9 =( 8) 107 7<108> = 295283 · 511541 · 1466821 · 8685155981<10> · 461927527017482449327764092223556074354628709248871975339978547865934981443096729<81>
(8·10109 -17)/9 =( 8) 108 7<109> = 72 · 89 · 2038268490916966037351270096053402634462024510178603276516599149022905042166679405844734897704400112104767 <106>
(8·10110 -17)/9 =( 8) 109 7<110> = 3 · 1637 · 15766643 · 723548233 · 9899934243079107571<19> · 23338928457939308360778840341713<32> · 6866850610572878476615766605117240155641<40>
(8·10111 -17)/9 =( 8) 110 7<111> = 4186346568103371749489<22> · 6225820066042708231114009<25> · 34104817819838432321293959215090765363730014275115403706542337087<65>
(8·10112 -17)/9 =( 8) 111 7<112> = 211 · 8948111 · 4707969703590445214303773397540791283824302626813302712950257560219748320556407604795255673753648730147 <103>
(8·10113 -17)/9 =( 8) 112 7<113> = 3 · 59 · 2351619779<10> · 46736458727099927<17> · 1256300898757835591251743030889<31> · 3637120034058355700695074839484064889500548879387200963<55>
(8·10114 -17)/9 =( 8) 113 7<114> = 29 · 1784911 · 33538517824451<14> · 999020919893651<15> · 288133649085748785474465305539<30> · 1778772824383337146574035101150428727593638732807<49>
(8·10115 -17)/9 =( 8) 114 7<115> = 7 · 8282791421<10> · 2776286665777<13> · 21138475882357<14> · 22484750589340489<17> · 116184089790850595823040984414312554698942238604416354896999801<63>
(8·10116 -17)/9 =( 8) 115 7<116> = 33 · 10186423231<11> · 311640716631149<15> · 45756009913758067938797<23> · 22665205293640088411856669894362517707843271271652558104450942062067<68>
(8·10117 -17)/9 =( 8) 116 7<117> = 17389529 · 45881054749<11> · 1114105363824491003837101467181337929424026789644706809656386361221467416282126153030318412390747547 <100>
(8·10118 -17)/9 =( 8) 117 7<118> = definitely prime number
(8·10119 -17)/9 =( 8) 118 7<119> = 3 · 19 · 97579 · 299999069421527844113664020937884337059777<42> · 53271674860476756080281066601628154932550579894328901559487020106350477<71> (Robert Backstrom / NFSX v1.8)
(8·10120 -17)/9 =( 8) 119 7<120> = 353 · 2287 · 17647951 · 1553782571566811545980850336630792267720690901<46> · 40153376641860988289737594014810066271215245562968042231500667<62> (Robert Backstrom / NFSX v1.8)
(8·10121 -17)/9 =( 8) 120 7<121> = 7 · 227 · 7593973 · 2313849913<10> · 3925815104035637109959<22> · 357178896468711329437415923<27> · 227040698240680572033877366570336686025274744730829531<54>
(8·10122 -17)/9 =( 8) 121 7<122> = 3 · 107 · 14790371 · 103748341423<12> · 4651129696094685712162426266825197639720411<43> · 38799288780164713894822174684285778290039632608642265839369<59> (Robert Backstrom / NFSX v1.8)
(8·10123 -17)/9 =( 8) 122 7<123> = 3607 · 33234363699498984164234544173233706039<38> · 7415048004853726652832700850497003223977356607728976057513098042530682294059639719<82> (Robert Backstrom / NFSX v1.8)
(8·10124 -17)/9 =( 8) 123 7<124> = definitely prime number
(8·10125 -17)/9 =( 8) 124 7<125> = 32 · 23 · 6353 · 33049 · 462665747 · 5307784351<10> · 120160806086127739<18> · 3952226479864534600972616953<28> · 1753697485062732452764475950234852749477779920448647<52>
(8·10126 -17)/9 =( 8) 125 7<126> = 25693 · 411856717537<12> · 203694113605201<15> · 3013823191594477<16> · 136832813690977160474631123492931602422019227705809189154118151747271392530907391<81>
(8·10127 -17)/9 =( 8) 126 7<127> = 7 · 113 · 19141 · 139999 · 4158748344209171<16> · 1008367398962901995684184444928506334691029144961218909641477636727648095862509086398745663426543713 <100>
(8·10128 -17)/9 =( 8) 127 7<128> = 3 · 41513 · 14852909557<11> · 10927808425024913074695044852579<32> · 4397415410405951585845608762633328736849808860842759755198142345026684042508324811<82> (Robert Backstrom / GMP-ECM 5.0c)
(8·10129 -17)/9 =( 8) 128 7<129> = 191 · 65518245791447<14> · 4945020595582957<16> · 104170612121490749<18> · 35204618388465372355242119<26> · 3916867563136452056090672920911993388549717899912780593<55>
(8·10130 -17)/9 =( 8) 129 7<130> = 269 · 122719 · 3172553 · 1056904813<10> · 208528031709373<15> · 466176243052559306209<21> · 826083688195743121487068296590333099727044254678371160893751643230038829<72>
(8·10131 -17)/9 =( 8) 130 7<131> = 3 · 2729189 · 19980973 · 82538700432686903957537<23> · 6582916570598632724092473676632907118169121554446740038098394724708169052101429251952495258461<94>
(8·10132 -17)/9 =( 8) 131 7<132> = 63567787523788157<17> · 14384908094288262665689<23> · 972082869736795262272907554521870383480002019170864871811354645711053239817407099186804852219<93>
(8·10133 -17)/9 =( 8) 132 7<133> = 7 · 309006715219<12> · 13476291399345038508660026880850215830179<41> · 304937704619086404388475074486102956295040096140416628136563785630686599258787641<81> (Robert Backstrom / GMP-ECM 5.0c)
(8·10134 -17)/9 =( 8) 133 7<134> = 32 · 383 · 709 · 72534183378848867710699827397259500930478306505663631<53> · 501437988948300678536370652126860284617117895152085194124521495666464224099<75> (Robert Backstrom / NFSX v1.8)
(8·10135 -17)/9 =( 8) 134 7<135> = 163 · 3299 · 117511848482765622867663881<27> · 14066819012716302813860416760755145837564234150943881686080763759892395696378018814844876640188408206471 <104>
(8·10136 -17)/9 =( 8) 135 7<136> = 47 · 3539 · 11071 · 298817 · 3410711 · 110323945547<12> · 1916758881298501<16> · 271667204945646081053311900993567523872793<42> · 82443704698212400959489661544774142481852520917<47> (Robert Backstrom / PPSIQS Ver 1.1)
(8·10137 -17)/9 =( 8) 136 7<137> = 3 · 19 · 1871 · 833487007500341208743695452182329450325737141118727098642145478906006628305427146463462534238083479974953715424614746677251951661921 <132>
(8·10138 -17)/9 =( 8) 137 7<138> = 223 · 5357895340167768341368325953524194627712611<43> · 743957949162430608664666405911973165775093903728585093276497428207302668291491363418226965379<93> (Robert Backstrom / NFSX v1.8)
(8·10139 -17)/9 =( 8) 138 7<139> = 7 · 1170563 · 9195458197<10> · 11506362253<11> · 541853661698287032693368052012284236209641<42> · 18921746304900975852505751265110395654913726325261378404329220798970547<71> (Greg Childers / GGNFS)
(8·10140 -17)/9 =( 8) 139 7<140> = 3 · 29567 · 407783 · 20205139 · 292057097 · 416447479944222469658185119918426816941671037260615554397165973053579750062690555558118268462444610782204332352783 <114>
(8·10141 -17)/9 =( 8) 140 7<141> = 49832154030989267740867384231123<32> · 5551433702907422298841863964693267244613910158966569<52> · 3213162276640339413566047915418064969550383692549981333701<58> (Robert Backstrom / GMP-ECM 5.0c)
(8·10142 -17)/9 =( 8) 141 7<142> = 29 · 211 · 40834205365966221499<20> · 6125788639952129515776257<25> · 5807388865849268151025154781131967006096279448048163396051762737516603497233550612889126225411<94>
(8·10143 -17)/9 =( 8) 142 7<143> = 34 · 487 · 1083785539<10> · 191487754485401761868598938072597<33> · 94867828833140499200211307524647727692672202209<47> · 114453789864314245754468837339937965415736463702143<51> (Robert Backstrom / GMP-ECM 5.0c, PPSIQS Ver 1.1)
(8·10144 -17)/9 =( 8) 143 7<144> = 599 · 241135754907107<15> · 75874025239004842373359386572738631090619<41> · 81108415893382466766494696285229496838195542104199630796025605211394157625582860602961<86> (Greg Childers / GGNFS)
(8·10145 -17)/9 =( 8) 144 7<145> = 7 · 97 · 10733 · 67829 · 747053 · 24070756826528357162053132769401872004034156421198426203378589224319125131506744236917186738478411140744545705232820754487821893 <128>
(8·10146 -17)/9 =( 8) 145 7<146> = 3 · 36007 · 5240798053<10> · 173500184747<12> · 904986118122698674648623275427773451996662447893974593706303268956439269439153557081510813205013881834046305273434773917 <120>
(8·10147 -17)/9 =( 8) 146 7<147> = 23 · 1322323 · 29226855310819733246418511010017610605133965291742962915785947348748110214369083107626203177842553987874530323065146284192055058602201313403 <140>
(8·10148 -17)/9 =( 8) 147 7<148> = 61 · 2963 · 4327 · 2220971 · 49257293 · 252105043583<12> · 107068210544832033178144510647295264556809<42> · 3848961691473928008685333750034076914162492347136794688130393671496560287<73> (Greg Childers / GGNFS)
(8·10149 -17)/9 =( 8) 148 7<149> = 3 · 29629629629629629629629629629629629629629629629629629629629629629629629629629629629629629629629629629629629629629629629629629629629629629629629629629 <149>
(8·10150 -17)/9 =( 8) 149 7<150> = 317 · 347 · 2437 · 3315913641102817385216013206673904402558726916500855752133236981338502670272303288290381066689851203253893455542358509406409938858917029394149 <142>
(8·10151 -17)/9 =( 8) 150 7<151> = 72 · 179 · 29559375733<11> · 14333551570203662826658609<26> · 2391934568470523122752707063623829757375300321986740379451912071783916385792485206714701929876611322856320201401 <112>
(8·10152 -17)/9 =( 8) 151 7<152> = 32 · 197 · 353 · 18521 · 32939 · 52718713172141141<17> · 4415952504496768497933616784978737836635314847931046066450675935784632620820360313958113183639418380593478290303506585437 <121>
(8·10153 -17)/9 =( 8) 152 7<153> = 89 · 22286723 · 94976111 · 217268134271750274716736715143719<33> · 21717050344389871464856176217536012976372677149540834313494789291293540788172416316018723197631883531069 <104> (Jo Yeong Uk / GGNFS-0.77.1-20050930-k8 / 25.48 hours on Core 2 Duo E6300@2.33GHz / Mar 6, 2007)
(8·10154 -17)/9 =( 8) 153 7<154> = 6317 · 22447933 · 3615233931072146953751<22> · 17338991701910644778293902716703661459563505893900311954506143423777524014589813818031501388449190421943884350975478986217 <122>
(8·10155 -17)/9 =( 8) 154 7<155> = 3 · 19 · 26681 · 40511360007479<14> · 327862013506794868394689987<27> · 4400505764179520890843638580354788978863362077931921315791613483207136385561069879219855280322406211159926107 <109>
(8·10156 -17)/9 =( 8) 155 7<156> = 191413 · 294293 · 2247379721<10> · 5289913621585527848874348853313<31> · 1327306059679471772390175491604367168135356343238374722780556040926974678339394316436973392646103133527191 <106> (Robert Backstrom / GMP-ECM 5.0 B1=297500, sigma=3029051197 for P31 / Apr 19, 2007)
(8·10157 -17)/9 =( 8) 156 7<157> = 7 · 8739994595235952825155053837<28> · 1097338309267008237239239772614316948193823367920986887082646889<64> · 132402971590214069443001363228800248580081550757875671603997677837<66> (Alexander Mkrtychyan / GMP-ECM 6.1.1 B1=50000 for P28 / Jan 5, 2007) (Robert Backstrom / GGNFS-0.77.1-20060513-athlon-xp / 33.76 hours on Cygwin on AMD 64 3200+ / Jun 2, 2007)
(8·10158 -17)/9 =( 8) 157 7<158> = 3 · 1220340659<10> · 32286752089<11> · 72827732377<11> · 8301373285666551053<19> · 139473270822343305961<21> · 1169902647640413773391556110703<31> · 7623130284963374144087381380873323320095760613859702563373<58> (Makoto Kamada / msieve 0.87 / 1.6 hours)
(8·10159 -17)/9 =( 8) 158 7<159> = 229 · 800509 · 4884721 · 262148354051<12> · 31689588497279916590736503849012575753313<41> · 119492948637304780639682337876688171145045603197808488844094715899024113564434226339292816029<93> (Jo Yeong Uk / GGNFS-0.77.1-20050930-nocona snfs / 31.11 hours on Core 2 Quad Q6600 / Oct 9, 2007)
(8·10160 -17)/9 =( 8) 159 7<160> = 6934331 · 968995160047131185467992972361627<33> · 1322882591846643298048151628358822882762642650753662322011497085867674561864363575653354158395684834292581003964206621551 <121> (Robert Backstrom / GMP-ECM 5.0 B1=367500, sigma=1441197155 for P33 / Jun 10, 2007)
(8·10161 -17)/9 =( 8) 160 7<161> = 32 · 349 · 5803823 · 571531745144533<15> · 8531492711312365759308584181502467223775305223806087408367712308196249126198716657782947923711006838941892659238584295694714679536976273 <136>
(8·10162 -17)/9 =( 8) 161 7<162> = 1741 · 2473 · 22031 · 107123 · 2263067 · 64205203 · 602060337452830771245854955088614087692239361885155200023348704527911221589599323576361919224017724951383645858483627942698161697143 <132>
(8·10163 -17)/9 =( 8) 162 7<163> = 7 · 233 · 410359 · 13280962599839642569745731692895992569657355187395684648132303434061769877576589771136643718546174374472608928617075654914301525072474955811170358033108703 <155>
(8·10164 -17)/9 =( 8) 163 7<164> = 3 · 151 · 48781123 · 122357220642452584209664973630349681033155453532931520441153082441941<69> · 32875160220972597758764681161227086029639996457194993224995199129738972707239023844853<86> (Robert Backstrom / GGNFS-0.77.1-20051202-athlon / 65.65 hours on Cygwin on AMD 64 3200+ / Aug 9, 2007)
(8·10165 -17)/9 =( 8) 164 7<165> = 4231 · 152048937767345855700762939829<30> · 1381723238293431159111092708913246840024395053044096527233740077521308211412091827024523998446276608223321441064778527781942402925613 <133> (Makoto Kamada / GMP-ECM 5.0.3 B1=69460, sigma=2265364011)
(8·10166 -17)/9 =( 8) 165 7<166> = 4083907 · 43094378617<11> · 38584081030692973979026508694832853174717<41> · 418114217260780904751406897239535819468897448269121<51> · 3130746579328069205359019081831876161205414051790095798089<58> (Robert Backstrom / GMP-ECM 6.0.1 B1=2566000, sigma=1489561470 for P41, GGNFS-0.77.1-20060513-athlon-xp gnfs, Msieve 1.32 for P51 x P58 / Dec 26, 2007)
(8·10167 -17)/9 =( 8) 166 7<167> = 3 · 29629629629629629629629629629629629629629629629629629629629629629629629629629629629629629629629629629629629629629629629629629629629629629629629629629629629629629629629 <167>
(8·10168 -17)/9 =( 8) 167 7<168> = 3947 · 71699 · 373247252387<12> · 1024799923094265919<19> · 13086962130596681403157479104708270412239<41> · 627469619736798457013692142254079987778839619064291230581747063260251518592308215913277437<90> (Serge Batalov / GMP-ECM 6.2.1 B1=3000000, sigma=4267839254 for P41 / Jun 29, 2008)
(8·10169 -17)/9 =( 8) 168 7<169> = 7 · 23 · 347651 · 570290792567<12> · 7647057099881162934899256947975591<34> · 288971669211010444364343532804847944865909<42> · 126017877051932162637963203064793127409653634778576315963511553718382954729<75> (Robert Backstrom / GMP-ECM 6.0 B1=2550000, sigma=1104068931 for P34, GGNFS-0.77.1-20051202-athlon gnfs, Msieve 1.36 for P42 x P75 / 33.79 hours on Cygwin on AMD 64 X2 6000+ / May 26, 2008)
(8·10170 -17)/9 =( 8) 169 7<170> = 33 · 29 · 12289 · 20047 · 839916478644411211<18> · 31528405303865506514741<23> · 20073120811434752849076139<26> · 26154423033817308400292740294424628345830003<44> · 33145275390848276684510115292036240442121498596449<50> (Makoto Kamada / msieve 0.87 / 5.9 hours)
(8·10171 -17)/9 =( 8) 170 7<171> = 59 · 877 · 6311 · 307651 · 11269789 · 2274880339<10> · 3271540499<10> · 73114430273<11> · 148546250833116191411<21> · 271360697289309719269<21> · 12392018672084274514462933<26> · 2888410513944867124190629877292837397091039892299976931<55>
(8·10172 -17)/9 =( 8) 171 7<172> = 211 · 283 · 82184381 · 425942149140173064937<21> · 3169195624165817116571<22> · 200165093909749676575045613<27> · 1658185856008255562482935319<28> · 14483363978555201427913057439<29> · 279124936189450501381569712592835469<36>
(8·10173 -17)/9 =( 8) 172 7<173> = 3 · 19 · 238591 · 266183 · 6010441682603<13> · [4085374382643256279685446798798261455196185672647351171116326649592819855766216889247141615858750518311869214438877986993774439985246386865646506549 <148> ] SUBMIT/RESERVE
(8·10174 -17)/9 =( 8) 173 7<174> = 109 · 397 · 109256591171598537406667<24> · 2975984750926615140313079<25> · 24160872143963687816225994560873<32> · 2614806271189742602385890354953181185480847519730424601676364259129555202024837855793764371<91> (Makoto Kamada / GMP-ECM 5.0.3 B1=97380, sigma=1740432406)
(8·10175 -17)/9 =( 8) 174 7<175> = 7 · 107 · 7159 · 1657728093180233026423626322061466112546185599776074089173214122790696556415937157517261249182247912034482236293432709159335208762568350460461952042382139521483109646757 <169>
(8·10176 -17)/9 =( 8) 175 7<176> = 3 · 263 · 62589632906718238985476358569<29> · 1799981617941769004418310793330172383655105701996801534957053331851522121899102371490932002067738591466062173684026552295640677256094002499030307 <145> (Makoto Kamada / GMP-ECM 5.0.3 B1=4000000, sigma=2327081955 for P29 / Mar 10, 2005)
(8·10177 -17)/9 =( 8) 176 7<177> = 4692979321<10> · 212833564007<12> · 889935885376349621986499512178389742700234593005604610101490821774104849374665012606919117594934615113224888451926437830686598935839347965052377193806640121 <156>
(8·10178 -17)/9 =( 8) 177 7<178> = 73721 · 316097 · 26893051 · 28804753 · 492415431845961610412851063643309175499363517040470380637097850706594699289619629728445116792469494611270357052396911244408553868024037691466551386829517 <153>
(8·10179 -17)/9 =( 8) 178 7<179> = 32 · 193 · 15809 · 552241 · 1674912378443233<16> · 3436763031126603253<19> · 681730178728744701011924498497<30> · 1493689791486146713478996194570842049379770863848290072870963693810359525801102136426038074592658672243 <103> (Serge Batalov / GMP-ECM 6.2.1 B1=1000000, sigma=1234632860 for P30 / Aug 5, 2008)
(8·10180 -17)/9 =( 8) 179 7<180> = 3658268353<10> · [242980777547373351177687343618689661744694017226704223928454077761552581456806235802376329631958218700116472535028621201012502345775531161228862668098774351693627350713079 <171> ] SUBMIT/RESERVE
(8·10181 -17)/9 =( 8) 180 7<181> = 7 · 1709 · 4253 · 3983165093026307702402046217<28> · [43861520701364732252769870687031534361057141753068471924374557286056504583720673640378144134184647090935167172927062385446263634692674481022068849 <146> ] (Serge Batalov / GMP-ECM 6.2.1 B1=3000000, sigma=2914738981 for P28 / Sep 18, 2008) SUBMIT/RESERVE
(8·10182 -17)/9 =( 8) 181 7<182> = 3 · 47 · 29443147 · 245690237799029<15> · [87147761657989714674362138041735987224502331697591516894946054749763237601269609005696396765906823497536144773663395855858901039255872310864285952718878797589 <158> ] SUBMIT/RESERVE
(8·10183 -17)/9 =( 8) 182 7<183> = 1259337356542822108306204266629<31> · [705838577939987753279711060237017228585936509399199518627682834424778845002336309634782236276759532406698056060483434655977248535150104022612858176741003 <153> ] (Jo Yeong Uk / GMP-ECM 5.0.3 B1=3000000, sigma=422141557 for P31 / May 4, 2007) SUBMIT/RESERVE
(8·10184 -17)/9 =( 8) 183 7<184> = 353 · 6131 · 11597 · 1688411 · 1872943 · 9208721 · 54425099 · [223457287440655123709028867467749774957491436831323463366155494074415705871594947725924102706296809170670908957958567556786267984562848619413670791 <147> ] SUBMIT/RESERVE
(8·10185 -17)/9 =( 8) 184 7<185> = 3 · 1061453 · 16458898798399<14> · 8036510860981755684517<22> · 211036289874592779453317430212308221790447584724820397486439503876011929461723191489283685699096285607025583916480325508488343082845978778689571 <144>
(8·10186 -17)/9 =( 8) 185 7<186> = 122041 · 600760122234227247339021404369<30> · 3064396278824864704453221938558760266788976239<46> · 2068999825167536250079312154581792851089121116323<49> · 1912208492840357290420849493550726386987869589952298531099<58> (Robert Backstrom / GMP-ECM 6.0.1 B1=338000, sigma=583227815 for P30 / Feb 20, 2008) (Robert Backstrom / GGNFS-0.77.1-20060513-athlon-xp, Msieve 1.38 snfs / 60.70 hours, 12.96 hours / Oct 9, 2008)
(8·10187 -17)/9 =( 8) 186 7<187> = 7 · 1301 · 44979797 · 109268427742217<15> · 32331916628258100672443<23> · [6142264377647497361908004971037521981398660626130924780814782360903214742805340725428851333401010112946404886035081166657138668591874633763 <139> ] SUBMIT/RESERVE
(8·10188 -17)/9 =( 8) 187 7<188> = 32 · 1993 · 265381 · [18673591032721872614865764788273238082692249771900702522466465045724144615537765333218669641484187292291559293912124576745608188988958821550329802037267881253192928325930749893371 <179> ] SUBMIT/RESERVE
(8·10189 -17)/9 =( 8) 188 7<189> = 22817 · 24379 · 246707 · 24859528994969497<17> · 457498475881420411<18> · [569520063071972663553573393708398815580891301895053150372501613933093083168763005952858951122953788446830620163284436565071308569254897735261 <141> ] SUBMIT/RESERVE
(8·10190 -17)/9 =( 8) 189 7<190> = definitely prime number
(8·10191 -17)/9 =( 8) 190 7<191> = 3 · 19 · 232 · 95881 · 2063819 · 14897479229517803427266434225237041417160170743074503742481611110406802599890771590782753795458638934035800579499682366193327654634548063107960043066530106801956494924700214261 <176>
(8·10192 -17)/9 =( 8) 191 7<192> = 17327 · 38327 · 1338502773595504559864766687879576517016951863736457018270566707774111329229674900760447111063879363739246541707163088995904494555133930695442752307397623693886044636583572887977213903 <184>
(8·10193 -17)/9 =( 8) 192 7<193> = 72 · 181405895691609977324263038548752834467120181405895691609977324263038548752834467120181405895691609977324263038548752834467120181405895691609977324263038548752834467120181405895691609977324263 <192>
(8·10194 -17)/9 =( 8) 193 7<194> = 3 · 457 · 7442198479<10> · 1853420236219<13> · 47262295153011259<17> · 15350897443886512393<20> · 64765061725005467929<20> · 6480369962419216676886015131553803<34> · 15436388905337558778371403302481752050799648156400720007183437167938419834568313<80> (Sinkiti Sibata / GGNFS-0.77.1 gnfs for P34 x P80 / 59.27 hours on Pentium 4 2.4GHz, Windows XP and Cygwin / May 12, 2006)
(8·10195 -17)/9 =( 8) 194 7<195> = 461 · 1710716099<10> · 566821422474137069<18> · 1186977947936869382050271<25> · 1675250296839513627607034458406641873181426261099763568319976314956201290486975464179204434551726946757650899632992747318509046043402748758667 <142>
(8·10196 -17)/9 =( 8) 195 7<196> = 181 · 4469584049981<13> · [10987573522470345832914172724096124090099275166869695646384612392266122203066345593029749221280548387708493312994980885298479798456366884801831814153809924577434593185825871763841367 <182> ] SUBMIT/RESERVE
(8·10197 -17)/9 =( 8) 196 7<197> = 33 · 89 · 51151 · 968567471 · 413233499506544201<18> · 11318255628295264288261<23> · 159637412279918892034950694480086941933387938093924708786946100717681905070708239907612684780636755900437236345703203761362797996514783495409 <141>
(8·10198 -17)/9 =( 8) 197 7<198> = 29 · 2551 · 26987713 · 24810652678294736989<20> · 122763886401873301220354203087<30> · [146171976769747747349388334776423064471607044898176691920488992333574187962280014690489994846698316344610133907207472343085837277045010167 <138> ] (Serge Batalov / GMP-ECM 6.2.1 B1=1000000, sigma=2642279068 for P30 / Jul 12, 2008) SUBMIT/RESERVE
(8·10199 -17)/9 =( 8) 198 7<199> = 7 · [1269841269841269841269841269841269841269841269841269841269841269841269841269841269841269841269841269841269841269841269841269841269841269841269841269841269841269841269841269841269841269841269841269841 <199> ] SUBMIT/RESERVE
(8·10200 -17)/9 =( 8) 199 7<200> = 3 · 131 · 69463 · 4069937 · [800043690657764064527611167061282693490463493172827611311801436902487718446235258712742070697911069669342022421212382551885329066971043495175884495668800758266370990543067900088002754089 <186> ] SUBMIT/RESERVE