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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
201815234843565539 ~1991
20181803403636078 ~1988
201821634843719139 ~1991
201828312018283119 ~1990
201829071614632579 ~1990
201830211614641699 ~1990
20183651403673038 ~1988
20183699403673998 ~1988
201841671614733379 ~1990
20184299403685998 ~1988
201843371211060239 ~1989
201843971211063839 ~1989
20184683403693678 ~1988
201847331211083999 ~1989
201847671614781379 ~1990
20184863403697278 ~1988
20184959403699198 ~1988
20185199403703998 ~1988
20185523403710478 ~1988
20185751403715038 ~1988
201858611211151679 ~1989
20186339403726798 ~1988
20186339258385139310
20186951403739038 ~1988
20187071403741438 ~1988
Exponent Prime Factor Digits Year
20187191500642336910 ~1993
201875712018757119 ~1990
20187659403753198 ~1988
20187911403758238 ~1988
20188613290716027310 ~1993
20188631403772638 ~1988
20188823403776478 ~1988
20189111403782238 ~1988
20189399403787998 ~1988
20189831403796638 ~1988
20189891403797838 ~1988
201902991615223939 ~1990
201911171211467039 ~1989
201911691615293539 ~1990
20191403403828078 ~1988
201914811615318499 ~1990
20191799403835998 ~1988
20192759403855198 ~1988
20192831403856638 ~1988
201928491615427939 ~1990
201930379288797039 ~1991
20193311403866238 ~1988
20193419403868398 ~1988
20193863403877278 ~1988
201940611211643679 ~1989
Exponent Prime Factor Digits Year
20194259403885198 ~1988
20194319403886398 ~1988
20194703403894078 ~1988
20196359403927198 ~1988
20196443403928878 ~1988
20196623403932478 ~1988
201972371211834239 ~1989
20197511403950238 ~1988
20197739307005632910 ~1993
20197799403955998 ~1988
20198039403960798 ~1988
201982512019825119 ~1990
20198603403972078 ~1988
20199131403982638 ~1988
20199191403983838 ~1988
20199659403993198 ~1988
20200259404005198 ~1988
202006811212040879 ~1989
202007571616060579 ~1990
202008899696426739 ~1991
20201063404021278 ~1988
20201651404033038 ~1988
202018971212113839 ~1989
20202191404043838 ~1988
202032176060965119 ~1991
Exponent Prime Factor Digits Year
20203643404072878 ~1988
20203919404078398 ~1988
20204003404080078 ~1988
20204231404084638 ~1988
20204351404087038 ~1988
20204417193962403310 ~1992
20205371404107438 ~1988
20205611404112238 ~1988
202056171212337039 ~1989
20205623404112478 ~1988
20206019404120398 ~1988
202062111616496899 ~1990
20206283537487127910 ~1993
202069611212417679 ~1989
202072331212433999 ~1989
20207471404149438 ~1988
20207651404153038 ~1988
202082472020824719 ~1990
202082771212496639 ~1989
20208431404168638 ~1988
20208719404174398 ~1988
20208959404179198 ~1988
202092072020920719 ~1990
202093371616746979 ~1990
20209691404193838 ~1988
1474
GIMPS The Prime Pages FactorDb.com
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25-11-02