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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
20760539415210798 ~1988
20760671415213438 ~1988
20761619415232398 ~1988
207617811245706879 ~1989
20762099415241998 ~1988
207624072076240719 ~1990
20762603415252078 ~1988
20762711415254238 ~1988
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
Exponent Prime Factor Digits Year
20769779415395598 ~1988
20769803415396078 ~1988
207703611246221679 ~1989
207715632077156319 ~1990
20771651415433038 ~1988
20772709149563504910 ~1992
207727971661823779 ~1990
20773139415462798 ~1988
20773331415466638 ~1988
20773463415469278 ~1988
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
Exponent Prime Factor Digits Year
20777483415549678 ~1988
20777651415553038 ~1988
20778011415560238 ~1988
20778203415564078 ~1988
207793971662351779 ~1990
207797233324755699 ~1990
20779751415595038 ~1988
20779799415595998 ~1988
20779919415598398 ~1988
20780219415604398 ~1988
20780411415608238 ~1988
207804792078047919 ~1990
20780999415619998 ~1988
20781251415625038 ~1988
20781263415625278 ~1988
207815179559497839 ~1991
207816371246898239 ~1989
20781851415637038 ~1988
20782031415640638 ~1988
207823272078232719 ~1990
20782379415647598 ~1988
207824171246945039 ~1989
20783291415665838 ~1988
20784143415682878 ~1988
207842771247056639 ~1989
Exponent Prime Factor Digits Year
20784443415688878 ~1988
20784671415693438 ~1988
207852771662822179 ~1990
20785313249423756110 ~1992
207868791662950339 ~1990
207870011247220079 ~1989
20787023415740478 ~1988
20787323415746478 ~1988
20787479415749598 ~1988
20787743415754878 ~1988
207879111663032899 ~1990
207879611247277679 ~1989
207880032078800319 ~1990
20788811415776238 ~1988
207890232078902319 ~1990
20789039415780798 ~1988
20789399415787998 ~1988
20789423415788478 ~1988
20790023415800478 ~1988
20790323415806478 ~1988
20790383415807678 ~1988
20790431415808638 ~1988
20790443415808878 ~1988
207904671663237379 ~1990
20790611415812238 ~1988
1445
GIMPS The Prime Pages FactorDb.com
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25-05-04