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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
6977473418648398 ~1986
6977611697761118 ~1986
6977891139557838 ~1984
6977903139558078 ~1984
6978113418686798 ~1986
6978421418705278 ~1986
6978431558274498 ~1986
69784371674824899 ~1987
6978481418708878 ~1986
6978593977003038 ~1986
6978617418717038 ~1986
6978659139573198 ~1984
6978793418727598 ~1986
6978901418734078 ~1986
6978941418736478 ~1986
6979003697900318 ~1986
6979033418741998 ~1986
69791391256245039 ~1987
6979391139587838 ~1984
6979853977179438 ~1986
6979943139598878 ~1984
69799571116793139 ~1987
6979961106095407310 ~1989
6980167698016718 ~1986
6980279139605598 ~1984
Exp. Prime Factor Digits Year
69805511256499199 ~1987
6981011139620238 ~1984
6981059139621198 ~1984
6981433418885998 ~1986
6981563139631278 ~1984
6981791139635838 ~1984
69821636283946719 ~1988
6982403139648078 ~1984
6982463139649278 ~1984
69825611117209779 ~1987
6983111139662238 ~1984
6983411558672898 ~1986
6983657419019438 ~1986
6983747558699778 ~1986
69839471117431539 ~1987
6984371558749698 ~1986
6984689558775138 ~1986
6984779139695598 ~1984
69852436286718719 ~1988
6985271139705438 ~1984
6985523139710478 ~1984
6985679558854338 ~1986
6985799139715998 ~1984
69858413912070979 ~1988
6985871139717438 ~1984
Exp. Prime Factor Digits Year
6985883139717678 ~1984
6985967558877378 ~1986
6986261558900898 ~1986
6986519139730398 ~1984
6986729558938338 ~1986
69867611117881779 ~1987
6986801419208078 ~1986
6987047558963778 ~1986
6987083139741678 ~1984
6987107558968578 ~1986
6987203139744078 ~1984
6987257419235438 ~1986
6987397419243838 ~1986
6987551139751038 ~1984
6987817419269038 ~1986
6987941419276478 ~1986
6987971139759438 ~1984
6988057419283438 ~1986
6988199139763998 ~1984
6988199559055938
6988211139764238 ~1984
6988367559069378 ~1986
6988451139769038 ~1984
6988799139775998 ~1984
6988811559104898 ~1986
Exp. Prime Factor Digits Year
69888111257985999
6989063139781278 ~1984
6989369559149538 ~1986
6989519139790398 ~1984
6989537419372238 ~1986
69895812096874319 ~1987
6989819139796398 ~1984
6989821419389278 ~1986
6990041559203298 ~1986
6990161559212898 ~1986
6990337419420238 ~1986
6990419139808398 ~1984
6990427699042718 ~1986
6990673183155632710 ~1990
6990839139816798 ~1984
6991511139830238 ~1984
6991619139832398 ~1984
6991823139836478 ~1984
6991877419512638 ~1986
6992201419532078 ~1986
6992339139846798 ~1984
6992351559388098 ~1986
6992543139850878 ~1984
6992849978998878 ~1987
69930712237782739 ~1987
836
GIMPS The Prime Pages FactorDb.com
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25-07-08