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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
276320931657925599 ~1990
27632183552643678 ~1989
27632219552644398 ~1989
27632411552648238 ~1989
27632999552659998 ~1989
276331192210649539 ~1991
27633251552665038 ~1989
27633779552675598 ~1989
27633863552677278 ~1989
276345134421522099 ~1991
276347931658087599 ~1990
27634823552696478 ~1989
27634991552699838 ~1989
27635053198972381710 ~1993
276361811658170879 ~1990
27636683552733678 ~1989
276367331658203999 ~1990
27637451552749038 ~1989
276380571658283439 ~1990
27638339552766798 ~1989
276388133869433839 ~1991
276389872211118979 ~1991
27640199552803998 ~1989
27640919552818398 ~1989
27641111552822238 ~1989
Exponent Prime Factor Digits Year
276411794975412239 ~1991
276411971658471839 ~1990
276412096081065999 ~1992
27641483552829678 ~1989
276415011658490079 ~1990
27641591552831838 ~1989
276417531658505199 ~1990
27641879552837598 ~1989
27642383552847678 ~1989
27642551552851038 ~1989
276429192764291919 ~1991
27642973127157675910 ~1992
27643331552866638 ~1989
27643571552871438 ~1989
27644231552884638 ~1989
276445211658671279 ~1990
27644759552895198 ~1989
27646163552923278 ~1989
27646799552935998 ~1989
276468411658810479 ~1990
27647003552940078 ~1989
27647183552943678 ~1989
276480772211846179 ~1991
276481931658891599 ~1990
27648623552972478 ~1989
Exponent Prime Factor Digits Year
276490731658944399 ~1990
276492772211942179 ~1991
27649283552985678 ~1989
27649343552986878 ~1989
27649679552993598 ~1989
27650159553003198 ~1989
276507712212061699 ~1991
27651059553021198 ~1989
27651119553022398 ~1989
276517131659102799 ~1990
27651803553036078 ~1989
27651863553037278 ~1989
27652151553043038 ~1989
27652643553052878 ~1989
276526996636647779 ~1992
27652991553059838 ~1989
276534531659207199 ~1990
27653771553075438 ~1989
27653819553076398 ~1989
27654083553081678 ~1989
276541274424660339 ~1991
27654239553084798 ~1989
27654311553086238 ~1989
276547072212376579 ~1991
276548331659289999 ~1990
Exponent Prime Factor Digits Year
27655091553101838 ~1989
27655619553112398 ~1989
27655703553114078 ~1989
276558914424942579 ~1991
27656003553120078 ~1989
27657671553153438 ~1989
27657857105099856710 ~1992
276581531659489199 ~1990
276584036638016739 ~1992
27658451553169038 ~1989
27658679553173598 ~1989
27658703553174078 ~1989
276587474425399539 ~1991
27658931553178638 ~1989
27658979553179598 ~1989
27659039553180798 ~1989
27659783553195678 ~1989
27660131553202638 ~1989
27660491553209838 ~1989
276613437191949199 ~1992
27661631553232638 ~1989
276618611659711679 ~1990
27662039553240798 ~1989
27662171553243438 ~1989
27662279553245598 ~1989
1600
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24-10-27