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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
2636917632860098 ~1984
2636983263698318 ~1983
2637001158220078 ~1982
263708352741677 ~1981
2637133158227998 ~1982
2637493158249598 ~1982
263753952750797 ~1981
2637763422042098 ~1983
2637797211023778 ~1983
2637997158279838 ~1982
263819952763997 ~1981
2638271685950478 ~1984
263840352768077 ~1981
2638579263857918 ~1983
2638589369402478 ~1983
2638607633265698 ~1984
2639041422246578 ~1983
263911152782237 ~1981
2639179633402978 ~1984
2639201158352078 ~1982
263930352786077 ~1981
2639333158359998 ~1982
26394911055796419 ~1984
2639513369531838 ~1983
263963952792797 ~1981
Exp. Prime Factor Digits Year
2639639475135038
263971152794237 ~1981
2639761158385678 ~1982
2639887422381938 ~1983
263989152797837 ~1981
2639921211193698 ~1983
2639941158396478 ~1982
263999952799997 ~1981
2640013158400798 ~1982
264025152805037 ~1981
2640289580863598 ~1984
2640347475262478 ~1983
26403473168416419
2640397158423838 ~1982
2640509211240738 ~1983
2640853158451198 ~1982
264095952819197 ~1981
2640959475372638
26410391267698739 ~1985
2641061158463678 ~1982
2641109211288738 ~1983
2641279633906978 ~1984
264128352825677 ~1981
2641313633915138 ~1984
2641337369787198 ~1983
Exp. Prime Factor Digits Year
2641543422646898 ~1983
264157152831437 ~1981
2641571211325698
264163152832637 ~1981
2641669581167198 ~1984
264173952834797 ~1981
2641739211339138
264203952840797 ~1981
2642201211376098 ~1983
2642323264232318 ~1983
264235152847037 ~1981
264248352849677 ~1981
2642797158567838 ~1982
2642987634316898 ~1984
2643073158584398 ~1982
2643097792929118 ~1984
264313152862637 ~1981
2643343264334318 ~1983
2643581158614878 ~1982
264367152873437 ~1981
2643913158634798 ~1982
26440434917919999 ~1986
2644073158644398 ~1982
2644127211530178 ~1983
264413952882797 ~1981
Exp. Prime Factor Digits Year
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
2645561211644898
264565152913037 ~1981
264566352913277 ~1981
264571152914237 ~1981
2645723634973538 ~1984
464
GIMPS The Prime Pages FactorDb.com
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25-09-07