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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
4235471762384798
4235633254137998 ~1984
4235741254144478 ~1984
4235897338871778 ~1984
4235947677751538 ~1985
4236101254166078 ~1984
4236137254168238 ~1984
423619184723837 ~1983
423620384724077 ~1983
4236283677805298 ~1985
4236319762537438 ~1985
423637184727437 ~1983
4236437254186238 ~1984
4236619762591438 ~1985
423677984735597 ~1983
423680384736077 ~1983
4236887338950978 ~1984
4236997254219838 ~1984
4237417677986738 ~1985
4237423423742318 ~1984
423746384749277 ~1983
4237501254250078 ~1984
423755984751197 ~1983
423761984752397 ~1983
423763184752637 ~1983
Exp. Prime Factor Digits Year
4238033254281998 ~1984
4238107423810718 ~1984
4238177593344798 ~1985
423830384766077 ~1983
4238519339081538 ~1984
423857984771597 ~1983
423865184773037 ~1983
4238791678206578 ~1985
42389891017357379 ~1985
423899984779997 ~1983
4239271678283378 ~1985
4239373254362398 ~1984
4239419763095438 ~1985
4239493254369598 ~1984
42395772034996979 ~1986
4239611339168898 ~1984
4239727678356338 ~1985
4239743133127930310 ~1988
4239821254389278 ~1984
42398534748635379 ~1987
4239877254392638 ~1984
423997184799437 ~1983
424009184801837 ~1983
424013984802797 ~1983
4240207424020718 ~1984
Exp. Prime Factor Digits Year
424045184809037 ~1983
424055984811197 ~1983
42405591017734179
4240603424060318 ~1984
4240721254443278 ~1984
42408111102610879 ~1985
4240849932986798 ~1985
4240981254458878 ~1984
424099184819837 ~1983
4241099339287938 ~1984
424141184828237 ~1983
424145984829197 ~1983
4241459339316738
4241539763477038 ~1985
424160384832077 ~1983
424166384833277 ~1983
424184384836877 ~1983
42418931272567919 ~1986
424190384838077 ~1983
4241987339358978 ~1984
4242169933277198 ~1985
424219184843837 ~1983
4242619763671438 ~1985
4242661254559678 ~1984
4242761254565678 ~1984
Exp. Prime Factor Digits Year
424283984856797 ~1983
42429191782025999 ~1986
424313984862797 ~1983
424319984863997 ~1983
4243279122206435310 ~1988
424339184867837 ~1983
424361984872397 ~1983
4243667339493378 ~1984
424397984879597 ~1983
424409984881997 ~1983
4244311679089778 ~1985
4244333594206638 ~1985
42443331273299919
4244417254665038 ~1984
4244417175718863910
4244447339555778 ~1984
4244477594226798 ~1985
4244479424447918 ~1984
4244497254669838 ~1984
4244621254677278 ~1984
4244621339569698
4244753254685198 ~1984
424481984896397 ~1983
4244927339594178 ~1984
424496384899277 ~1983
640
GIMPS The Prime Pages FactorDb.com
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26-04-05