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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
31467711762191779 ~1985
3146867251749378 ~1983
3146953188817198 ~1983
3146987566457678 ~1984
3147121188827278 ~1983
3147169944150718 ~1985
3147197440607598 ~1984
31472231258889219 ~1985
3147233188833998 ~1983
3147259314725918 ~1983
31473111007139539 ~1985
31476493210601999 ~1986
3147719251817538 ~1983
314797162959437 ~1982
3148001188880078 ~1983
314825962965197 ~1982
31482592266746499
3148337440767198 ~1984
314851162970237 ~1982
3148627503780338 ~1984
314875162975037 ~1982
314899162979837 ~1982
3148991566818398
3149261251940898 ~1983
3149387566889678 ~1984
Exp. Prime Factor Digits Year
314954362990877 ~1982
3149639566935038 ~1984
3149771566958798 ~1984
3149791566962398 ~1984
3149821188989278 ~1983
314983162996637 ~1982
3149897440985598 ~1984
3149899314989918 ~1983
3150193189011598 ~1983
3150197252015778 ~1983
315044363008877 ~1982
3150569441079678 ~1984
3150601504096178 ~1984
3150799315079918 ~1983
3150907504145138 ~1984
315092363018477 ~1982
3150947567170478 ~1984
315116363023277 ~1982
315125963025197 ~1982
3151361189081678 ~1983
3151399756335778 ~1984
3151507567271278 ~1984
315155963031197 ~1982
3151567567282078 ~1984
3151741189104478 ~1983
Exp. Prime Factor Digits Year
3151781252142498 ~1983
315200363040077 ~1982
31520591260823619 ~1985
3152087567375678 ~1984
3152153189129198 ~1983
31522511323945439 ~1985
315233963046797 ~1982
3152453189147198 ~1983
3152573189154398 ~1983
3152623504419698 ~1984
3152753189165198 ~1983
3152753441385438
3152827567508878 ~1984
3152861189171678 ~1983
3152927567526878 ~1984
3152987819776638 ~1984
3153121189187278 ~1983
315313163062637 ~1982
315319163063837 ~1982
3153583315358318 ~1983
3153629252290338 ~1983
3153739567673038 ~1984
3153763504602098 ~1984
3153793189227598 ~1983
315404363080877 ~1982
Exp. Prime Factor Digits Year
3154241189254478 ~1983
3154433189265998 ~1983
31545732271292579 ~1986
315479963095997 ~1982
3154967252397378 ~1983
31550512082333679 ~1985
315530363106077 ~1982
315536363107277 ~1982
3155417189325038 ~1983
3155549252443938 ~1983
31555491199108639
315565163113037 ~1982
3155777252462178 ~1983
315578363115677 ~1982
315581963116397 ~1982
3156091315609118 ~1983
315643163128637 ~1982
3156683757603938 ~1984
3156697189401838 ~1983
3157109252568738 ~1983
315713963142797 ~1982
3157151252572098 ~1983
315775163155037 ~1982
315791963158397 ~1982
3157919252633538
511
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25-04-13