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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
15663121939787278 ~1988
15663311313266238 ~1987
15663503313270078 ~1987
15663611313272238 ~1987
15663971313279438 ~1987
15664223313284478 ~1987
15664381939862878 ~1988
15664763313295278 ~1987
15664841939890478 ~1988
15664919313298398 ~1987
156651291253210339 ~1989
15665159313303198 ~1987
15665333939919998 ~1988
15665339313306798 ~1987
15665603313312078 ~1987
15665651313313038 ~1987
15665999313319998 ~1987
15666613939996798 ~1988
15667031313340638 ~1987
156671932193407039 ~1989
15667919313358398 ~1987
15668111313362238 ~1987
15668291313365838 ~1987
15668621940117278 ~1988
15668651313373038 ~1987
Exponent Prime Factor Digits Year
15668771313375438 ~1987
15669191313383838 ~1987
15669431313388638 ~1987
15669551313391038 ~1987
156697271566972719 ~1989
15669779313395598 ~1987
156699173760780099 ~1990
15670211313404238 ~1987
156710871253686979 ~1989
15671231313424638 ~1987
15671353940281198 ~1988
15671423313428478 ~1987
15671473940288398 ~1988
15671483313429678 ~1987
156714837835741519
15671699313433998 ~1987
15671797137911813710 ~1991
15672203313444078 ~1987
156729071567290719 ~1989
15672983313459678 ~1987
15673571313471438 ~1987
15673799313475998 ~1987
15673811313476238 ~1987
15673961940437678 ~1988
15673979313479598 ~1987
Exponent Prime Factor Digits Year
15674081940444878 ~1988
156741791567417919 ~1989
15674531313490638 ~1987
15674759313495198 ~1987
15674783313495678 ~1987
15674831313496638 ~1987
15674837940490238 ~1988
156748871567488719 ~1989
15675251313505038 ~1987
15675433940525998 ~1988
15675563313511278 ~1987
156760271567602719 ~1989
15676103313522078 ~1987
156762171254097379 ~1989
15676337940580238 ~1988
15676679313533598 ~1987
15676751313535038 ~1987
15676931313538638 ~1987
15677279313545598 ~1987
156773091254184739 ~1989
156774911567749119 ~1989
15677591313551838 ~1987
15677999313559998 ~1987
15678263313565278 ~1987
15678779313575598 ~1987
Exponent Prime Factor Digits Year
15678959313579198 ~1987
156794293449474399 ~1990
15679439313588798 ~1987
15679739313594798 ~1987
15680051313601038 ~1987
15680153940809198 ~1988
15680713940842798 ~1988
15681119313622398 ~1987
15681371313627438 ~1987
15681623313632478 ~1987
15682453940947198 ~1988
156826373763832899 ~1990
15682679313653598 ~1987
15682739313654798 ~1987
15682871313657438 ~1987
156831471254651779 ~1989
15683903313678078 ~1987
156842393764217379 ~1990
156844511568445119 ~1989
156846312823233599 ~1990
156852171254817379 ~1989
15685253941115198 ~1988
15685277941116638 ~1988
15685283313705678 ~1987
15685343313706878 ~1987
1258
GIMPS The Prime Pages FactorDb.com
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25-04-13