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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
20748443414968878 ~1988
20748719414974398 ~1988
207488092904833279 ~1990
20749331414986638 ~1988
20749343414986878 ~1988
20749523414990478 ~1988
20750459415009198 ~1988
207509592075095919 ~1990
20751119415022398 ~1988
20751179415023598 ~1988
207514571245087439 ~1989
20751683415033678 ~1988
207520011660160099 ~1990
20752031415040638 ~1988
20752499415049998 ~1988
20752811415056238 ~1988
20753303415066078 ~1988
207536274980870499 ~1991
20753699415073998 ~1988
20753891415077838 ~1988
207542034981008739 ~1991
207545113735811999 ~1990
207545834981099939 ~1991
20754719415094398 ~1988
20755043415100878 ~1988
Exponent Prime Factor Digits Year
207556611245339679 ~1989
207560271660482179 ~1990
20756063415121278 ~1988
207565872075658719 ~1990
20756699415133998 ~1988
207567171660537379 ~1990
207572571245435439 ~1989
20757371415147438 ~1988
207574277057525199 ~1991
20758511415170238 ~1988
207588411245530479 ~1989
20759279415185598 ~1988
20759471415189438 ~1988
207595971245575839 ~1989
20760023415200478 ~1988
20760263415205278 ~1988
20760479415209598 ~1988
20760539415210798 ~1988
20760671415213438 ~1988
20761619415232398 ~1988
207617811245706879 ~1989
20762099415241998 ~1988
207624072076240719 ~1990
20762603415252078 ~1988
20762711415254238 ~1988
Exponent Prime Factor Digits Year
20763131415262638 ~1988
20763839415276798 ~1988
20763923415278478 ~1988
207639912076399119 ~1990
20764223415284478 ~1988
20764619415292398 ~1988
20764703415294078 ~1988
20765411415308238 ~1988
20765999415319998 ~1988
207664191661313539 ~1990
20766671415333438 ~1988
20767223415344478 ~1988
20767751415355038 ~1988
20768411415368238 ~1988
207685513322968179 ~1990
20768711415374238 ~1988
20769491415389838 ~1988
20769779415395598 ~1988
20769803415396078 ~1988
207703611246221679 ~1989
20771651415433038 ~1988
207727971661823779 ~1990
20773139415462798 ~1988
20773331415466638 ~1988
20773463415469278 ~1988
Exponent Prime Factor Digits Year
207740598309623619 ~1991
207748573323977139 ~1990
207750433324006899 ~1990
207750611246503679 ~1989
20775383415507678 ~1988
20775431415508638 ~1988
207754311662034499
20775539415510798 ~1988
20775899415517998 ~1988
20776043415520878 ~1988
20776271415525438 ~1988
20776559415531198 ~1988
207768976233069119 ~1991
20776991415539838 ~1988
20777411415548238 ~1988
20777483415549678 ~1988
20777651415553038 ~1988
20778011415560238 ~1988
20778203415564078 ~1988
207793971662351779 ~1990
207797233324755699 ~1990
20779751415595038 ~1988
20779799415595998 ~1988
20779919415598398 ~1988
20780219415604398 ~1988
1391
GIMPS The Prime Pages FactorDb.com
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24-10-27