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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
4981237298874238 ~1984
4981373697392238 ~1985
49814692391105139 ~1987
498163199632637 ~1983
4981637298898238 ~1984
4981673697434238 ~1985
4981861298911678 ~1984
4982101298926078 ~1984
498223199644637 ~1983
4982359498235918 ~1985
49823591694002079
4982381298942878 ~1984
4982381398590498
49824371195784899 ~1986
4982897298973838 ~1984
498313199662637 ~1983
498329999665997 ~1983
498413999682797 ~1983
498443999688797 ~1983
4984439398755138
4984879498487918 ~1985
4985081299104878 ~1984
49851071196425699 ~1986
49852091196450179 ~1986
498542399708477 ~1983
Exp. Prime Factor Digits Year
4985521299131278 ~1984
4985609697985278 ~1985
49856092692228879
4985741299144478 ~1984
498601199720237 ~1983
4986077398886178 ~1985
4986077698050798
4986713299202798 ~1984
4986767398941378 ~1985
498695999739197 ~1983
498698399739677 ~1983
498701999740397 ~1983
4987109398968738 ~1985
4987231797956978 ~1985
4987259398980738 ~1985
4987351797976178 ~1985
4987393299243598 ~1984
498740399748077 ~1983
4987891498789118 ~1985
498811199762237 ~1983
4988119897861438 ~1986
4988453698383438 ~1985
49884531496535919
498859199771837 ~1983
498866399773277 ~1983
Exp. Prime Factor Digits Year
498869999773997 ~1983
498875999775197 ~1983
498889199777837 ~1983
4989067498906718 ~1985
4989209698489278 ~1985
498935999787197 ~1983
49893712794047779 ~1987
498944399788877 ~1983
4989797399183778 ~1985
49898112095720639 ~1987
498986399797277 ~1983
4989997299399838 ~1984
499003199800637 ~1983
4990121299407278 ~1984
499025999805197 ~1983
499067999813597 ~1983
49907236487939919 ~1988
49910093593526499 ~1987
499115999823197 ~1983
4991293299477598 ~1984
499130399826077 ~1983
4991419898455438 ~1986
4991479499147918 ~1985
499177199835437 ~1983
4991839148756802310 ~1989
Exp. Prime Factor Digits Year
499208399841677 ~1983
4992401399392098 ~1985
4992551399404098 ~1985
4992593698963038 ~1985
499262399852477 ~1983
49926771497803119 ~1986
4992833299569998 ~1984
499328399865677 ~1983
4993433299605998 ~1984
4993517299611038 ~1984
499355999871197 ~1983
49938171198516099 ~1986
4993837299630238 ~1984
4993843499384318 ~1985
49939091198538179 ~1986
4993987499398718 ~1985
4994117299647038 ~1984
4994233299653998 ~1984
4994263499426318 ~1985
4994357299661438 ~1984
4994621299677278 ~1984
4994659499465918 ~1985
4994819399585538 ~1985
499490399898077 ~1983
4995007499500718 ~1985
681
GIMPS The Prime Pages FactorDb.com
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25-06-01