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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
6645389531631138 ~1986
6645461531636898 ~1986
6645491132909838 ~1984
6645677531654178 ~1986
6645857531668578 ~1986
66458712791265839 ~1987
6645911132918238 ~1984
6646217398773038 ~1985
6646319132926398 ~1984
6646331132926638 ~1984
6646511132930238 ~1984
6646573398794398 ~1985
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
Exp. Prime Factor Digits Year
6647939132958798 ~1984
6647951531836098 ~1986
6648203132964078 ~1984
66483311063732979 ~1986
6648431132968638 ~1984
66484312792341039
6648583664858318 ~1986
6648749531899938 ~1986
6648773398926398 ~1985
6649007531920578 ~1986
6649117398947038 ~1985
6649141398948478 ~1985
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
Exp. Prime Factor Digits Year
6651181154307399310 ~1989
6651251532100098 ~1986
6651277399076638 ~1985
6651397399083838 ~1985
66513971064223539
6651467532117378 ~1986
6651941532155298 ~1986
6652031133040638 ~1984
6652319133046398 ~1984
6652409532192738 ~1986
6652433399145998 ~1985
66528291596678979 ~1987
6653039133060798 ~1984
6653107665310718 ~1986
6653123133062478 ~1984
6653219133064398 ~1984
6653243133064878 ~1984
66534115988069919 ~1988
6653711133074238 ~1984
66537232794563679 ~1987
6653771532301698 ~1986
6653939532315138 ~1986
6654113399246798 ~1985
6654299133085998 ~1984
6654649334063379910 ~1990
Exp. Prime Factor Digits Year
6654737399284238 ~1985
66547371597136899
6654779133095598 ~1984
6655087665508718 ~1986
66551991597247779 ~1987
6655307532424578 ~1986
6655373931752238 ~1986
6655403133108078 ~1984
66554093194596339 ~1988
6655541399332478 ~1985
6655739133114798 ~1984
6655769931807678 ~1986
6655931133118638 ~1984
6656393399383598 ~1985
6656543133130878 ~1984
6656597532527778 ~1986
6656603133132078 ~1984
6656759532540738 ~1986
6656953399417198 ~1985
6657073399424398 ~1985
6657257399435438 ~1985
6657311532584898 ~1986
6657437532594978 ~1986
6657449532595938 ~1986
6657671133153438 ~1984
803
GIMPS The Prime Pages FactorDb.com
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25-04-13