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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
62348834489115779 ~1988
6235133872918638 ~1986
6235373374122398 ~1985
6235643124712878 ~1984
62357777482932419 ~1988
6236299623629918 ~1986
62362991496711779
6236353374181198 ~1985
6236423124728478 ~1984
6236459124729198 ~1984
62367432494697219 ~1987
6236771124735438 ~1984
6237061374223678 ~1985
6237191124743838 ~1984
6237251124745038 ~1984
6237373168409071110 ~1989
6237383124747678 ~1984
62374091372229999 ~1987
6237773873288238 ~1986
6238147623814718 ~1986
6238283124765678 ~1984
6238307499064578 ~1986
6238663623866318 ~1986
6238751499100098 ~1986
62387511122975199
Exp. Prime Factor Digits Year
6238787499102978 ~1986
6238931124778638 ~1984
6239081499126498 ~1986
6239099124781998 ~1984
6239333374359998 ~1985
6239419623941918 ~1986
6239447499155778 ~1986
6239699124793998 ~1984
6239837499186978 ~1986
6239921374395278 ~1985
62401935865781439 ~1988
6240251499220098 ~1986
6240431124808638 ~1984
6240491124809838 ~1984
6240973374458398 ~1985
62411271497870499 ~1987
62412671123428079 ~1986
6241331124826638 ~1984
6241451124829038 ~1984
6241511499320898 ~1986
6241871124837438 ~1984
6241979124839598 ~1984
6241979499358338
6242087499366978 ~1986
6242363124847278 ~1984
Exp. Prime Factor Digits Year
62424792621841199 ~1987
6242531124850638 ~1984
6242921374575278 ~1985
6243239124864798 ~1984
6243319624331918 ~1986
6243361374601678 ~1985
6244079124881598 ~1984
6244643124892878 ~1984
6244873374692398 ~1985
6245017999202738 ~1986
6245051124901038 ~1984
6245387499630978 ~1986
6245497374729838 ~1985
6245587624558718 ~1986
62458871124259679 ~1986
6245923624592318 ~1986
6245947624594718 ~1986
6246199624619918 ~1986
6246239124924798 ~1984
62463191124337439 ~1986
6246371124927438 ~1984
6246811624681118 ~1986
6246893374813598 ~1985
6246983124939678 ~1984
6247127499770178 ~1986
Exp. Prime Factor Digits Year
6247343124946878 ~1984
6247433374845998 ~1985
6247537374852238 ~1985
62475411874262319 ~1987
6247583124951678 ~1984
6247859124957198 ~1984
6247897374873838 ~1985
6248069499845538 ~1986
6248119624811918 ~1986
6248591124971838 ~1984
62486531499676739 ~1987
6248773374926398 ~1985
6249359124987198 ~1984
6249361374961678 ~1985
6249539124990798 ~1984
6249563124991278 ~1984
6249679164991525710 ~1989
6249697374981838 ~1985
6249913374994798 ~1985
6249959124999198 ~1984
6250087625008718 ~1986
62503931375086479 ~1987
6250459625045918 ~1986
62504931500118339 ~1987
6250697500055778 ~1986
782
GIMPS The Prime Pages FactorDb.com
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25-07-08