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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.
Exponent Prime Factor Digits Year
126131715297531839 ~1990
126135671261356719 ~1988
1261356766430611962312
12613619252272398 ~1986
12613871252277438 ~1986
126144171009153379 ~1988
12614639252292798 ~1986
12614963252299278 ~1986
12614999252299998 ~1986
12615191252303838 ~1986
12615611252312238 ~1986
126156536812452639 ~1990
12615923252318478 ~1986
12616739252334798 ~1986
126168431261684319 ~1988
12616979252339598 ~1986
126170711261707119 ~1988
12617219252344398 ~1986
126173574794595679 ~1990
12617771252355438 ~1986
126179211009433699 ~1988
12618323252366478 ~1986
126185691009485539 ~1988
12618803252376078 ~1986
12619421757165278 ~1988
Exponent Prime Factor Digits Year
12619643252392878 ~1986
12620561757233678 ~1988
12620603252412078 ~1986
12620963252419278 ~1986
12621659252433198 ~1986
126216714038934739 ~1989
126217315301127039 ~1990
12621877757312638 ~1988
12621977757318638 ~1988
12622079252441598 ~1986
12622979252459598 ~1986
12623077757384638 ~1988
126247491009979939 ~1988
12624791252495838 ~1986
12625043252500878 ~1986
12625073757504398 ~1988
126250971010007779 ~1988
12625331252506638 ~1986
126254712020075379 ~1989
12625523252510478 ~1986
126257415050296419 ~1990
126265671010125379 ~1988
12626891252537838 ~1986
126273012020368179 ~1989
12627547315688675110 ~1992
Exponent Prime Factor Digits Year
12627971252559438 ~1986
12628019252560398 ~1986
12628223252564478 ~1986
126283791010270339 ~1988
12628381757702878 ~1988
12628463252569278 ~1986
12628859252577198 ~1986
12629483252589678 ~1986
12629843252596878 ~1986
12630011252600238 ~1986
12630251252605038 ~1986
126305211010441699 ~1988
12630539252610798 ~1986
12630851252617038 ~1986
12631511252630238 ~1986
12632591252651838 ~1986
12633503252670078 ~1986
12633563252671278 ~1986
12633899252677998 ~1986
126339312274107599 ~1989
12634091252681838 ~1986
12634151252683038 ~1986
126343616064493299 ~1990
1263447168822490431312 ~1997
126347817833564239 ~1990
Exponent Prime Factor Digits Year
12635033758101998 ~1988
12635159252703198 ~1986
12635221758113278 ~1988
12635377758122638 ~1988
126356695476298944711 ~1995
126368532780107679 ~1989
12636983252739678 ~1986
12637201758232078 ~1988
12637763252755278 ~1986
12637811252756238 ~1986
126379511263795119 ~1988
12637991252759838 ~1986
126380271011042179 ~1988
126385433286021199 ~1989
12638741758324478 ~1988
12638761758325678 ~1988
12638903252778078 ~1986
126392293033414979 ~1989
12639359252787198 ~1986
126398391011187139 ~1988
126398811011190499 ~1988
12639923252798478 ~1986
12640499252809998 ~1986
126406011011248099 ~1988
12640703252814078 ~1986
1146
GIMPS The Prime Pages FactorDb.com
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25-06-01