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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
2643913158634798 ~1982
26440434917919999 ~1986
2644073158644398 ~1982
2644127211530178 ~1983
264413952882797 ~1981
26441392115311219
2644157211532578 ~1983
2644157370181998
26441711745152879 ~1985
2644261158655678 ~1982
264440352888077 ~1981
26445132697403279 ~1985
2644613522575528910 ~1988
26446191269417139 ~1985
2644727211578178 ~1983
264475152895037 ~1981
26449212697819439 ~1985
264509952901997 ~1981
264517152903437 ~1981
2645221423235378 ~1983
2645221581948638
26453591058143619 ~1984
264539952907997 ~1981
2645431423268978 ~1983
2645561158733678 ~1982
Exp. Prime Factor Digits Year
2645561211644898
264565152913037 ~1981
264566352913277 ~1981
264571152914237 ~1981
2645723634973538 ~1984
2645809793742718 ~1984
264584352916877 ~1981
26458491005422639 ~1984
2645933635023938 ~1984
26459771693425299 ~1985
2645987635036898 ~1984
264607152921437 ~1981
2646227476320878 ~1983
26462331481890499 ~1985
264659952931997 ~1981
2646887635252898 ~1984
2646901158814078 ~1982
2646937158816238 ~1982
264703152940637 ~1981
2647097211767778 ~1983
26470972911806719
264725952945197 ~1981
2647331211786498 ~1983
26473431482512099 ~1985
26473611270733299 ~1985
Exp. Prime Factor Digits Year
2647367476526078 ~1983
26473911270747699 ~1985
2647397158843838 ~1982
2647481158848878 ~1982
264755952951197 ~1981
264764352952877 ~1981
2647751688415278 ~1984
264776352955277 ~1981
2647763635463138
2647769794330718 ~1984
2647873158872398 ~1982
264791952958397 ~1981
2648183688527598 ~1984
26482571218198239 ~1984
264835152967037 ~1981
264836352967277 ~1981
2648479635634978 ~1984
2648533158911998 ~1982
264887952977597 ~1981
2649067423850738 ~1983
264932352986477 ~1981
2649329370906078 ~1983
2649497158969838 ~1982
26494991536709439 ~1985
2649503688870798 ~1984
Exp. Prime Factor Digits Year
2649541158972478 ~1982
2649611476929998 ~1984
2649709635930178 ~1984
26497271271868979 ~1985
264985152997037 ~1981
2649851211988098
2649863635967138 ~1984
2649863847956178
2649989370998478 ~1983
2650163636039138 ~1984
265021153004237 ~1981
2650229848073298 ~1984
26502591113108799 ~1984
2650337159020238 ~1982
2650357159021438 ~1982
2650387424061938 ~1983
265046353009277 ~1981
2650573159034398 ~1982
2650577159034638 ~1982
2650787636188898 ~1984
2651053636252738 ~1984
265106353021277 ~1981
265111153022237 ~1981
2651191477214398 ~1984
26513593817956979 ~1986
473
GIMPS The Prime Pages FactorDb.com
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26-03-08