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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
28441691568833838 ~1989
284418011706508079 ~1990
284419493981872879 ~1991
28442231568844638 ~1989
28442723568854478 ~1989
284428931706573599 ~1990
28442951568859038 ~1989
28443071568861438 ~1989
284433672844336719 ~1991
28444271568885438 ~1989
28444343568886878 ~1989
284444693982225679 ~1991
28444511568890238 ~1989
28444739568894798 ~1989
284447992275583939 ~1991
28445171568903438 ~1989
28445771568915438 ~1989
28445999568919998 ~1989
28446443568928878 ~1989
28446683568933678 ~1989
28447571568951438 ~1989
28447799568955998 ~1989
28448039568960798 ~1989
28448279568965598 ~1989
28448603568972078 ~1989
Exponent Prime Factor Digits Year
284486592844865919 ~1991
28449299568985998 ~1989
28449563568991278 ~1989
28449611568992238 ~1989
28449719568994398 ~1989
28450223569004478 ~1989
284503276828078499 ~1992
284508672845086719 ~1991
28451051569021038 ~1989
28451063569021278 ~1989
28451399569027998 ~1989
284514131707084799 ~1990
28451651569033038 ~1989
28452419569048398 ~1989
28452491569049838 ~1989
28453151569063038 ~1989
28453391569067838 ~1989
28453751569075038 ~1989
28454351569087038 ~1989
28454819569096398 ~1989
28455491569109838 ~1989
28455743569114878 ~1989
28455851569117038 ~1989
284563971707383839 ~1990
28456619569132398 ~1989
Exponent Prime Factor Digits Year
284567174553074739 ~1991
28457531569150638 ~1989
284578331707469999 ~1990
284579112845791119 ~1991
28457963569159278 ~1989
28458011569160238 ~1989
28458491569169838 ~1989
28458803569176078 ~1989
28458803142294015110
28458863569177278 ~1989
28459331569186638 ~1989
284595531707573199 ~1990
28459583569191678 ~1989
28459979569199598 ~1989
28460171569203438 ~1989
28460219569204398 ~1989
284607795122940239 ~1992
28460843569216878 ~1989
28460903569218078 ~1989
28461539569230798 ~1989
28461899569237998 ~1989
28462223569244478 ~1989
28462391569247838 ~1989
28462631569252638 ~1989
284634672846346719 ~1991
Exponent Prime Factor Digits Year
28463723569274478 ~1989
28464011569280238 ~1989
28464083569281678 ~1989
28464349204943312910 ~1993
28465091569301838 ~1989
284651476831635299 ~1992
28465499569309998 ~1989
28465511569310238 ~1989
284657411707944479 ~1990
28466159569323198 ~1989
28466363569327278 ~1989
28466699569333998 ~1989
28466723569334478 ~1989
284670178540105119 ~1992
28467143569342878 ~1989
28467631119564050310 ~1992
28467779569355598 ~1989
28468019569360398 ~1989
28468703569374078 ~1989
28469351569387038 ~1989
284695492277563939 ~1991
28469879569397598 ~1989
28469939569398798 ~1989
28470191569403838 ~1989
284709016263598239 ~1992
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24-10-27