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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
286309392863093919 ~1991
28631171572623438 ~1989
286312371717874239 ~1990
28631663188968975910 ~1993
28632143572642878 ~1989
28632203572644078 ~1989
28633043572660878 ~1989
28633331572666638 ~1989
28633679572673598 ~1989
28633751572675038 ~1989
28633799572675998 ~1989
28634423572688478 ~1989
28634531572690638 ~1989
286346934008857039 ~1991
28634951572699038 ~1989
286349812290798499 ~1991
28635059572701198 ~1989
28635923572718478 ~1989
286362136872691139 ~1992
28636259572725198 ~1989
28636703572734078 ~1989
286373872290990979 ~1991
28637879572757598 ~1989
286381915154874399 ~1992
28638359572767198 ~1989
Exponent Prime Factor Digits Year
28638383572767678 ~1989
28638419572768398 ~1989
28638503572770078 ~1989
28639223572784478 ~1989
286393371718360239 ~1990
28639571572791438 ~1989
28639931572798638 ~1989
286401192864011919 ~1991
28640663572813278 ~1989
28641419572828398 ~1989
28642151572843038 ~1989
28642583572851678 ~1989
28642811572856238 ~1989
286428292291426339 ~1991
28642871572857438 ~1989
286428837447149599 ~1992
28642931572858638 ~1989
28642979572859598 ~1989
286429938592897919 ~1992
28643711572874238 ~1989
286438012291504099 ~1991
28643819572876398 ~1989
28643999572879998 ~1989
286440731718644399 ~1990
286447696874744579 ~1992
Exponent Prime Factor Digits Year
286459371718756239 ~1990
28646099572921998 ~1989
286463812291710499 ~1991
28646483572929678 ~1989
28646531572930638 ~1989
28646539183337849710 ~1993
28647011572940238 ~1989
28647623572952478 ~1989
286480972291847779 ~1991
286481571718889439 ~1990
28648199572963998 ~1989
28648439572968798 ~1989
28648457727670807910 ~1994
28648871572977438 ~1989
286488771718932639 ~1990
28649111572982238 ~1989
28650131573002638 ~1989
28650731573014638 ~1989
286508334011116639 ~1991
28650911573018238 ~1989
28651643573032878 ~1989
28651823573036478 ~1989
286518913094404228111 ~1996
28652363573047278 ~1989
28653419573068398 ~1989
Exponent Prime Factor Digits Year
28653431573068638 ~1989
28654319573086398 ~1989
28654823573096478 ~1989
286548539169552979 ~1992
286554915157988399 ~1992
286556331719337999 ~1990
28656011573120238 ~1989
28656311573126238 ~1989
28656779573135598 ~1989
28656983573139678 ~1989
28657151573143038 ~1989
28657439573148798 ~1989
28658219573164398 ~1989
28658639573172798 ~1989
28658891573177838 ~1989
28658939573178798 ~1989
286594731719568399 ~1990
28659503573190078 ~1989
28659563573191278 ~1989
28659623573192478 ~1989
28659731573194638 ~1989
286600811719604879 ~1990
28660199573203998 ~1989
28660211573204238 ~1989
28660451573209038 ~1989
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25-04-13