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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
22197239443944798 ~1988
22197251443945038 ~1988
221974491775795939 ~1990
22197683443953678 ~1988
22198271443965438 ~1988
22198331443966638 ~1988
221991192219911919 ~1990
22199231443984638 ~1988
22199591443991838 ~1988
22200023444000478 ~1988
22200263444005278 ~1988
22200323444006478 ~1988
222003371332020239 ~1990
22201043444020878 ~1988
22201331444026638 ~1988
22201691444033838 ~1988
222020693108289679 ~1990
22202819444056398 ~1988
22202903444058078 ~1988
22203563444071278 ~1988
22203743444074878 ~1988
22203983444079678 ~1988
222040513996729199 ~1991
22204151444083038 ~1988
222047573108665999 ~1990
Exponent Prime Factor Digits Year
22204883444097678 ~1988
22205279444105598 ~1988
22205483444109678 ~1988
222055371776442979 ~1990
22205819444116398 ~1988
222059771332358639 ~1990
222064335329543939 ~1991
222065571776524579 ~1990
22207739444154798 ~1988
222079735329913539 ~1991
22208051444161038 ~1988
22208951444179038 ~1988
22209419444188398 ~1988
22209503444190078 ~1988
22209899444197998 ~1988
22209923444198478 ~1988
22210379444207598 ~1988
22210871444217438 ~1988
222112513553800179 ~1991
22211543444230878 ~1988
222116771332700639 ~1990
22211771444235438 ~1988
22212299444245998 ~1988
222124392221243919 ~1990
22212791444255838 ~1988
Exponent Prime Factor Digits Year
22213703444274078 ~1988
22213979444279598 ~1988
22213991444279838 ~1988
22214099444281998 ~1988
222141171332847039 ~1990
22214183444283678 ~1988
22214399444287998 ~1988
22214663444293278 ~1988
222154971332929839 ~1990
22215839444316798 ~1988
222158411332950479 ~1990
222160311777282499 ~1990
222163512221635119 ~1990
22217543444350878 ~1988
22218083444361678 ~1988
22219199444383998 ~1988
22219271444385438 ~1988
22219283444385678 ~1988
222194091777552739 ~1990
22219523444390478 ~1988
22219751444395038 ~1988
22219919444398398 ~1988
22220171444403438 ~1988
22220603444412078 ~1988
22220651444413038 ~1988
Exponent Prime Factor Digits Year
222210611333263679 ~1990
22221191444423838 ~1988
22221539444430798 ~1988
22221911444438238 ~1988
22221971444439438 ~1988
22222199444443998 ~1988
22223231444464638 ~1988
22223951444479038 ~1988
22224311444486238 ~1988
22224539444490798 ~1988
22224563444491278 ~1988
22225019444500398 ~1988
222254472222544719 ~1990
22225499444509998 ~1988
22225691444513838 ~1988
22226003444520078 ~1988
22226999444539998 ~1988
22227563444551278 ~1988
222276411333658479 ~1990
22227983444559678 ~1988
222280211333681279 ~1990
22228091444561838 ~1988
22228319444566398 ~1988
22228403444568078 ~1988
222284474001120479 ~1991
1487
GIMPS The Prime Pages FactorDb.com
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25-04-13