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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.
Exp. Prime Factor Digits Year
9553757573225438 ~1987
9553937764314978 ~1987
9553981573238878 ~1987
9555257573315438 ~1987
9555263191105278 ~1985
9555433573325998 ~1987
9556331191126638 ~1985
9556583191131678 ~1985
95569036880970179 ~1989
9556993573419598 ~1987
9557237764578978 ~1987
9557279191145598 ~1985
9557321573439278 ~1987
9557363191147278 ~1985
9557413573444798 ~1987
9557459764596738 ~1987
9557711191154238 ~1985
9557783191155678 ~1985
95578811529260979 ~1988
9557993573479598 ~1987
9558011191160238 ~1985
9558221764657698 ~1987
9558293573497598 ~1987
9558397573503838 ~1987
9558433573505998 ~1987
Exp. Prime Factor Digits Year
9558467764677378 ~1987
9559021573541278 ~1987
95591573632479679 ~1989
9559391191187838 ~1985
9559469764757538 ~1987
9559477573568638 ~1987
95597033059104979 ~1988
9559943191198878 ~1985
95600172868005119 ~1988
9560231191204638 ~1985
9560399191207998 ~1985
9560483191209678 ~1985
9561011191220238 ~1985
9561197764895778 ~1987
9561647764931778 ~1987
9561659191233198 ~1985
9562093573725598 ~1987
95620932103660479
9562097573725838 ~1987
95621232294909539 ~1988
95621392294913379 ~1988
9562331191246638 ~1985
95624032294976739 ~1988
9562439191248798 ~1985
95626491338770879 ~1988
Exp. Prime Factor Digits Year
9562867956286718 ~1987
9562991765039298 ~1987
9563003191260078 ~1985
9563063191261278 ~1985
9563297765063778 ~1987
9563363191267278 ~1985
9563483191269678 ~1985
95634835355550499
95637114016758639 ~1989
9564097573845838 ~1987
9564371191287438 ~1985
9564479191289598 ~1985
9564509765160738 ~1987
9564697573881838 ~1987
9565001573900078 ~1987
9565091191301838 ~1985
9565093573905598 ~1987
9565163191303278 ~1985
9565201573912078 ~1987
95657931339211039 ~1988
9565817573949038 ~1987
9565859191317198 ~1985
9566159765292738 ~1987
9566351191327038 ~1985
95665331530645299 ~1988
Exp. Prime Factor Digits Year
9566717574003038 ~1987
95668674592096179 ~1989
95671577462382479 ~1989
9567443191348878 ~1985
9568171956817118 ~1987
95682911530926579 ~1988
9568439191368798 ~1985
9568451191369038 ~1985
9568709765496738 ~1987
9568859191377198 ~1985
9569459191389198 ~1985
9569471191389438 ~1985
9569531191390638 ~1985
9569603191392078 ~1985
95697732296745539 ~1988
95699471722590479 ~1988
9569957765596578 ~1987
9570251191405038 ~1985
9570299191405998 ~1985
9570443191408878 ~1985
9570853574251198 ~1987
9571027957102718 ~1987
9571283191425678 ~1985
95714536700017119 ~1989
9571817574309038 ~1987
999
GIMPS The Prime Pages FactorDb.com
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25-07-08