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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
249099792490997919 ~1990
24910163498203278 ~1989
24910283498205678 ~1989
249105535978532739 ~1991
24911279498225598 ~1989
24911531498230638 ~1989
24911543498230878 ~1989
24911591498231838 ~1989
24911951498239038 ~1989
24911963498239278 ~1989
24912983498259678 ~1989
249136215480996639 ~1991
24913919498278398 ~1989
24914003498280078 ~1989
24914423498288478 ~1989
249145813986332979 ~1991
249147531494885199 ~1990
24915563498311278 ~1989
24915623498312478 ~1989
24916091498321838 ~1989
24916403498328078 ~1989
249170232491702319 ~1990
24917603498352078 ~1989
24920663498413278 ~1989
24920783498415678 ~1989
Exponent Prime Factor Digits Year
249208435981002339 ~1991
24920939498418798 ~1989
24921899498437998 ~1989
24921971498439438 ~1989
24922511498450238 ~1989
249228971495373839 ~1990
249229211495375279 ~1990
24923663498473278 ~1989
24923711498474238 ~1989
24924239498484798 ~1989
24924671498493438 ~1989
24924923498498478 ~1989
24925091498501838 ~1989
24925151498503038 ~1989
24925223498504478 ~1989
24925259498505198 ~1989
24925319498506398 ~1989
24925559498511198 ~1989
24925811498516238 ~1989
24926171498523438 ~1989
249263333489686639 ~1991
24926663498533278 ~1989
24926771498535438 ~1989
24927263498545278 ~1989
249280392492803919 ~1990
Exponent Prime Factor Digits Year
24928223498564478 ~1989
24928679498573598 ~1989
24928979498579598 ~1989
249296211994369699 ~1990
24929699498593998 ~1989
249310191994481539 ~1990
24931031498620638 ~1989
249315411495892479 ~1990
24931631498632638 ~1989
249318913989102579 ~1991
24932543498650878 ~1989
249325811495954879 ~1990
24932651498653038 ~1989
24932903498658078 ~1989
24933059498661198 ~1989
249334811496008879 ~1990
24934319498686398 ~1989
24935363498707278 ~1989
249354111994832899 ~1990
24935699498713998 ~1989
24935759498715198 ~1989
24936011498720238 ~1989
24936503498730078 ~1989
24936731498734638 ~1989
24937331498746638 ~1989
Exponent Prime Factor Digits Year
24937571498751438 ~1989
24937739498754798 ~1989
24938159498763198 ~1989
249381912493819119 ~1990
24938471498769438 ~1989
24938519498770398 ~1989
24938737119705937710 ~1992
24938939498778798 ~1989
24938951498779038 ~1989
24939251498785038 ~1989
24939983498799678 ~1989
24940271498805438 ~1989
24940703498814078 ~1989
24940823498816478 ~1989
24940859498817198 ~1989
249408714489356799 ~1991
249430071995440579 ~1990
24943043498860878 ~1989
24943823498876478 ~1989
24944459498889198 ~1989
24944603498892078 ~1989
249453371496720239 ~1990
24945491498909838 ~1989
249455271995642179 ~1990
24945863498917278 ~1989
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25-06-08