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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
6640757398445438 ~1985
6641077398464638 ~1985
66411971593887299 ~1987
6641249929774878 ~1986
6641291132825838 ~1984
66413291461092399 ~1987
6641489531319138 ~1986
6641561531324898 ~1986
6641699132833998 ~1984
6641717531337378 ~1986
6641953398517198 ~1985
6642067664206718 ~1986
66421431594114339 ~1987
6642341398540478 ~1985
6642347531387778 ~1986
66423736376678099 ~1988
6642431132848638 ~1984
6642487664248718 ~1986
6642539132850798 ~1984
6642659132853198 ~1984
66426591195678639
6642877398572638 ~1985
6643211132864238 ~1984
6643361398601678 ~1985
6643537398612238 ~1985
Exp. Prime Factor Digits Year
66436871062989939 ~1986
6643691132873838 ~1984
6643781531502498 ~1986
6644069531525538 ~1986
6644101398646078 ~1985
6644111531528898 ~1986
6644441398666478 ~1985
6644483132889678 ~1984
66448871196079679 ~1987
6645013398700798 ~1985
6645059132901198 ~1984
66450771993523119 ~1987
6645329531626338 ~1986
6645389531631138 ~1986
6645461531636898 ~1986
6645491132909838 ~1984
6645677531654178 ~1986
6645857531668578 ~1986
66458712791265839 ~1987
6645911132918238 ~1984
6646217398773038 ~1985
6646319132926398 ~1984
6646331132926638 ~1984
6646511132930238 ~1984
6646573398794398 ~1985
Exp. Prime Factor Digits Year
66465791196384239 ~1987
6646769531741538 ~1986
6646859132937198 ~1984
66469571063513139 ~1986
66470411462349039 ~1987
6647279132945598 ~1984
6647363132947278 ~1984
6647579132951598 ~1984
6647581398854878 ~1985
66475813190838899
6647747531819778 ~1986
6647783132955678 ~1984
6647831132956638 ~1984
6647939132958798 ~1984
6647951531836098 ~1986
6648203132964078 ~1984
66483311063732979 ~1986
6648431132968638 ~1984
66484312792341039
6648583664858318 ~1986
6648749531899938 ~1986
6648773398926398 ~1985
6649007531920578 ~1986
6649117398947038 ~1985
6649141398948478 ~1985
Exp. Prime Factor Digits Year
6649271132985438 ~1984
6649289531943138 ~1986
6649337531946978 ~1986
6649589930942478 ~1986
6649631132992638 ~1984
66496334255765139 ~1988
6650099532007938 ~1986
6650153399009198 ~1985
6650279133005598 ~1984
66503511197063199 ~1987
66510534123652879 ~1988
6651119133022398 ~1984
6651149532091938 ~1986
6651181154307399310 ~1989
6651251532100098 ~1986
6651277399076638 ~1985
6651397399083838 ~1985
66513971064223539
6651467532117378 ~1986
6651941532155298 ~1986
6652031133040638 ~1984
6652319133046398 ~1984
6652409532192738 ~1986
6652433399145998 ~1985
66528291596678979 ~1987
805
GIMPS The Prime Pages FactorDb.com
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25-05-04