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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
6657257399435438 ~1985
6657311532584898 ~1986
6657437532594978 ~1986
6657449532595938 ~1986
6657671133153438 ~1984
66577691997330719 ~1987
6657779133155598 ~1984
6657851133157038 ~1984
6657887532630978 ~1986
6657929932110078 ~1986
6658079133161598 ~1984
6658181399490878 ~1985
6658321399499278 ~1985
6658649532691938 ~1986
6658859133177198 ~1984
6658921399535278 ~1985
6659111133182238 ~1984
6659333399559998 ~1985
6659369532749538 ~1986
6659777532782178 ~1986
6660029532802338 ~1986
6660061399603678 ~1985
6660233399613998 ~1985
6660239133204798 ~1984
6660557532844578 ~1986
Exp. Prime Factor Digits Year
6660707532856578 ~1986
6660911133218238 ~1984
6661103133222078 ~1984
6661157399669438 ~1985
6661217399673038 ~1985
6661223133224478 ~1984
6661273399676398 ~1985
6661327666132718 ~1986
6661337532906978 ~1986
6661643133232878 ~1984
6661661399699678 ~1985
6661751532940098 ~1986
6662003133240078 ~1984
6662063133241278 ~1984
66620692131862099 ~1987
66624176928913699 ~1989
6662477532998178 ~1986
6662531133250638 ~1984
6662717533017378 ~1986
6662741533019298 ~1986
6662879133257598 ~1984
6663179133263598 ~1984
66634873198473779 ~1988
6663539133270798 ~1984
6663653399819198 ~1985
Exp. Prime Factor Digits Year
6663857399831438 ~1985
6663869533109538 ~1986
66639071066225139 ~1987
6663911133278238 ~1984
6664103133282078 ~1984
6664121399847278 ~1985
6664139133282798 ~1984
6664481533158498 ~1986
6664657399879438 ~1985
6664873399892398 ~1985
6665063133301278 ~1984
6665339133306798 ~1984
6665363133307278 ~1984
6665537933175198 ~1986
66655392666215619 ~1987
66656274399313839 ~1988
6665831133316638 ~1984
6665881399952878 ~1985
66661331466549279 ~1987
66664871066637939 ~1987
66667492000024719 ~1987
66667612133363539 ~1987
6666943666694318 ~1986
6667027666702718 ~1986
6667061400023678 ~1985
Exp. Prime Factor Digits Year
6667151133343038 ~1984
6667183666718318 ~1986
6667207666720718 ~1986
6667229533378338 ~1986
6667337400040238 ~1985
6667337533386978
6667403133348078 ~1984
6667637533410978 ~1986
6667867666786718 ~1986
6668059666805918 ~1986
6668113400086798 ~1985
66681491466992799 ~1987
66689391200409039 ~1987
6669059133381198 ~1984
6669161400149678 ~1985
6669251133385038 ~1984
6669269533541538 ~1986
6669269933697678
6669493400169598 ~1985
6669587533566978 ~1986
66695871200525679
6669857533588578 ~1986
6669863133397278 ~1984
6669961400197678 ~1985
6670211133404238 ~1984
844
GIMPS The Prime Pages FactorDb.com
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26-05-10