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Small Mersenne Prime Factors
Prime numbers of the form Mp= 2p − 1 are called Mersenne primes. For Mp to be prime, p must also be prime.
Any factor q of a Mersenne number 2p − 1 must be of the form 2kp + 1, where integer k ≥ 0. Furthermore, q must be 1 or 7 mod 8.
Exponent Prime Factor Digits Year
1207919633724751779910 ~2003
1207939571241587914310 ~2002
1207990631241598126310 ~2002
1208046839241609367910 ~2002
1208053331241610666310 ~2002
1208081291241616258310 ~2002
12080848812657786738311 ~2004
1208130971241626194310 ~2002
1208136383241627276710 ~2002
1208156699241631339910 ~2002
1208167511241633502310 ~2002
1208177219241635443910 ~2002
12081953711208195371111 ~2004
1208198417724919050310 ~2003
1208236079241647215910 ~2002
1208246471241649294310 ~2002
1208249099241649819910 ~2002
12082683712174883067911 ~2004
1208271131241654226310 ~2002
12082726992899854477711 ~2005
1208284943241656988710 ~2002
1208342339241668467910 ~2002
1208391911241678382310 ~2002
1208400073725040043910 ~2003
1208405183241681036710 ~2002
Exponent Prime Factor Digits Year
1208449157725069494310 ~2003
1208497331241699466310 ~2002
1208611499241722299910 ~2002
1208657579966926063310 ~2003
1208689211241737842310 ~2002
1208730359241746071910 ~2002
1208768699241753739910 ~2002
1208806283241761256710 ~2002
1208807003241761400710 ~2002
1208862383241772476710 ~2002
1208897303241779460710 ~2002
12089250071208925007111 ~2004
1208953379241790675910 ~2002
1209069791241813958310 ~2002
1209078659241815731910 ~2002
1209093773725456263910 ~2003
1209220223241844044710 ~2002
1209253481967402784910 ~2003
1209283079241856615910 ~2002
1209307499241861499910 ~2002
12093253316772221853711 ~2005
1209334271241866854310 ~2002
1209335893725601535910 ~2003
1209348911241869782310 ~2002
1209378119241875623910 ~2002
Exponent Prime Factor Digits Year
1209387941725632764710 ~2003
1209422531241884506310 ~2002
1209422957967538365710 ~2003
1209434669967547735310 ~2003
1209457043241891408710 ~2002
12094624512177032411911 ~2004
1209485041725691024710 ~2003
1209512519241902503910 ~2002
1209558277725734966310 ~2003
1209562703241912540710 ~2002
1209646547967717237710 ~2003
1209651143241930228710 ~2002
1209655259241931051910 ~2002
1209696203241939240710 ~2002
1209743543241948708710 ~2002
120979405715243405118312 ~2006
12098373131935739700911 ~2004
1209850331241970066310 ~2002
1209851063241970212710 ~2002
1209864923241972984710 ~2002
1209878051241975610310 ~2002
1209906611241981322310 ~2002
1209920897967936717710 ~2003
1209953113725971867910 ~2003
1209956711241991342310 ~2002
Exponent Prime Factor Digits Year
1209969157725981494310 ~2003
1210010099242002019910 ~2002
1210056779242011355910 ~2002
12100597271936095563311 ~2004
1210082519242016503910 ~2002
12100830672178149520711 ~2004
1210119791242023958310 ~2002
1210121051242024210310 ~2002
1210131239242026247910 ~2002
12101327471210132747111 ~2004
1210150871242030174310 ~2002
1210163291242032658310 ~2002
12101894711210189471111 ~2004
1210190519242038103910 ~2002
1210262639242052527910 ~2002
1210267703242053540710 ~2002
12102791411936446625711 ~2004
1210349669968279735310 ~2003
12103699692904887925711 ~2005
1210408769968327015310 ~2003
1210426583242085316710 ~2002
1210457459968365967310 ~2003
1210486631242097326310 ~2002
12105078072905218736911 ~2005
1210535159242107031910 ~2002
3534
GIMPS The Prime Pages FactorDb.com
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25-04-13