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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
38715831626064879
3871657619465138 ~1985
3871661232299678 ~1984
38717811161534319 ~1985
3871787929228898 ~1985
387182377436477 ~1982
3872249309779938 ~1984
38722992478271379 ~1986
3872417232345038 ~1984
38725212788215139 ~1986
3872677232360638 ~1984
3872797232367838 ~1984
3872887387288718 ~1984
38729691161890719 ~1985
3872971192099361710 ~1988
3873313929595138 ~1985
3873413542277838 ~1985
387343177468637 ~1982
387349177469837 ~1982
3873697232421838 ~1984
387373177474637 ~1982
3873781619804978 ~1985
3873809542333278 ~1985
3873941309915298 ~1984
38741111549644419 ~1986
Exp. Prime Factor Digits Year
3874237232454238 ~1984
3874243619878898 ~1985
387443977488797 ~1982
387476377495277 ~1982
3874853929964738 ~1985
38748671549946819 ~1986
387491977498397 ~1982
38749191627465999
3874957619993138 ~1985
3875057232503438 ~1984
3875101232506078 ~1984
3875159310012738 ~1984
3875239387523918 ~1984
38753173022747279 ~1986
3875681232540878 ~1984
38756811162704319
3875797169759908710 ~1988
3876073232564398 ~1984
387631177526237 ~1982
387637177527437 ~1982
3876413542697838 ~1985
387653977530797 ~1982
3876793620286898 ~1985
3876973620315698 ~1985
3876991697858398 ~1985
Exp. Prime Factor Digits Year
3877073542790238 ~1985
3877151310172098 ~1984
3877417232645038 ~1984
3877481232648878 ~1984
3877589310207138 ~1984
387763177552637 ~1982
3877813232668798 ~1984
3878177310254178 ~1984
387818377563677 ~1982
387827977565597 ~1982
3878519930844578 ~1985
3878753543025438 ~1985
3878759310300738 ~1984
3878981310318498 ~1984
3878993543059038 ~1985
38791991318927679 ~1985
38793111241379539 ~1985
3879361232761678 ~1984
3879517931084098 ~1985
387967177593437 ~1982
387971977594397 ~1982
3879721232783278 ~1984
3879839310387138 ~1984
3880033232801998 ~1984
388009177601837 ~1982
Exp. Prime Factor Digits Year
3880241310419298 ~1984
38803817450331539 ~1987
3880447620871538 ~1985
3880601310448098 ~1984
3880733232843998 ~1984
3880817310465378 ~1984
3880927620948338 ~1985
3881021310481698 ~1984
38810271009067039 ~1985
3881077232864638 ~1984
3881161620985778 ~1985
3881173232870398 ~1984
3881299698633838 ~1985
388130377626077 ~1982
3882353543529438 ~1985
3882421232945278 ~1984
3882569310605538 ~1984
3882911310632898 ~1984
3882911698923998
38829471009566239 ~1985
3883073232984398 ~1984
3883133232987998 ~1984
3883177232990638 ~1984
3883541233012478 ~1984
3883547932051298 ~1985
591
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25-09-07