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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
25528463510569278 ~1989
25529303510586078 ~1989
25529351510587038 ~1989
25530083510601678 ~1989
25530359510607198 ~1989
25530371510607438 ~1989
25530559102122236110 ~1992
25530671510613438 ~1989
25530899510617998 ~1989
25531139510622798 ~1989
25531283510625678 ~1989
25531619510632398 ~1989
25532161347237389710 ~1993
255323211531939279 ~1990
25532939510658798 ~1989
255329811531978879 ~1990
25533023510660478 ~1989
25533239510664798 ~1989
255334011532004079 ~1990
25533551510671038 ~1989
25533899510677998 ~1989
25534139510682798 ~1989
255344274596196879 ~1991
255347394596253039 ~1991
25535099510701998 ~1989
Exponent Prime Factor Digits Year
25535171510703438 ~1989
25535483510709678 ~1989
25535651510713038 ~1989
25536139183860200910 ~1993
255362573575075999 ~1991
255363412042907299 ~1990
255363472042907779 ~1990
25536383510727678 ~1989
25537103510742078 ~1989
25537163510743278 ~1989
25537331510746638 ~1989
25537763510755278 ~1989
25537931510758638 ~1989
25538459510769198 ~1989
25539167449489339310 ~1994
25539203510784078 ~1989
25539383510787678 ~1989
25539911510798238 ~1989
25540139510802798 ~1989
25540211510804238 ~1989
255402611532415679 ~1990
25540283510805678 ~1989
25540523510810478 ~1989
25540979510819598 ~1989
255413872043310979 ~1990
Exponent Prime Factor Digits Year
255415192043321539 ~1990
25541651510833038 ~1989
25541723510834478 ~1989
25541759510835198 ~1989
25542299510845998 ~1989
25543439510868798 ~1989
25544063510881278 ~1989
25544339510886798 ~1989
25545251510905038 ~1989
25545323510906478 ~1989
25545599510911998 ~1989
255457872554578719 ~1991
25545983510919678 ~1989
25546379510927598 ~1989
255468171532809039 ~1990
25546919510938398 ~1989
25546931510938638 ~1989
25547003510940078 ~1989
25547239735760483310 ~1994
25547339510946798 ~1989
25547663510953278 ~1989
25547843510956878 ~1989
25548839510976798 ~1989
25549571510991438 ~1989
25550951511019038 ~1989
Exponent Prime Factor Digits Year
25551191511023838 ~1989
25551299511025998 ~1989
255520811533124879 ~1990
25552223511044478 ~1989
25552679511053598 ~1989
255528432555284319 ~1991
255534971533209839 ~1990
25553663511073278 ~1989
25554443511088878 ~1989
25554779511095598 ~1989
25554839511096798 ~1989
25555151511103038 ~1989
255553672044429379 ~1990
25555499511109998 ~1989
25556543511130878 ~1989
255566472555664719 ~1991
25556879511137598 ~1989
25557011511140238 ~1989
25557599511151998 ~1989
25557839511156798 ~1989
25557923511158478 ~1989
255579472044635779 ~1990
25557971511159438 ~1989
25558499511169998 ~1989
25558943511178878 ~1989
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25-06-08