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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
12685481761128878 ~1988
12685501761130078 ~1988
12685643253712878 ~1986
12685763253715278 ~1986
12686039253720798 ~1986
12686111253722238 ~1986
126865873044780899 ~1989
12686759253735198 ~1986
126869871014958979 ~1988
126875511015004099 ~1988
12687599253751998 ~1986
12687683253753678 ~1986
12687803253756078 ~1986
12687971253759438 ~1986
12688693761321598 ~1988
126889271268892719 ~1988
12689003253780078 ~1986
12689057761343438 ~1988
12689401761364078 ~1988
12689639253792798 ~1986
12689711253794238 ~1986
12689783253795678 ~1986
126900171776602399 ~1989
12690061761403678 ~1988
12690263253805278 ~1986
Exponent Prime Factor Digits Year
12690473761428398 ~1988
12690731253814638 ~1986
12690763791903611310 ~1993
12690971253819438 ~1986
12691223253824478 ~1986
12691631253832638 ~1986
12691691253833838 ~1986
126921791269217919 ~1988
12693221761593278 ~1988
12693599253871998 ~1986
12693671253873438 ~1986
126940634315981439 ~1989
12694991253899838 ~1986
126953211015625699 ~1988
12695783253915678 ~1986
12696311253926238 ~1986
12696899253937998 ~1986
12696917761815038 ~1988
12696923253938478 ~1986
12697043253940878 ~1986
12697463253949278 ~1986
12697703253954078 ~1986
126977214063270739 ~1989
12697931253958638 ~1986
126979995079199619 ~1990
Exponent Prime Factor Digits Year
12698123253962478 ~1986
126982071015856579 ~1988
12698579253971598 ~1986
12698951253979038 ~1986
12699359253987198 ~1986
126994311015954499 ~1988
12699443253988878 ~1986
12699551253991038 ~1986
127001415842064879 ~1990
12700643254012878 ~1986
127014411016115299 ~1988
12702161762129678 ~1988
12702181762130878 ~1988
12702197762131838 ~1988
127022892794503599 ~1989
12702311254046238 ~1986
12702373762142398 ~1988
12702419254048398 ~1986
127024911016199299 ~1988
127033073048793699 ~1989
12703763254075278 ~1986
12704093762245598 ~1988
12704231254084638 ~1986
12704903254098078 ~1986
12705061762303678 ~1988
Exponent Prime Factor Digits Year
12705397762323838 ~1988
12705419254108398 ~1986
127055694065782099 ~1989
12706139254122798 ~1986
12706601762396078 ~1988
12706691254133838 ~1986
12706703254134078 ~1986
127068291016546339 ~1988
127069371778971199 ~1989
127072692795599199 ~1989
12707351254147038 ~1986
12707413762444798 ~1988
127078011016624099 ~1988
12708023254160478 ~1986
12708337762500238 ~1988
127083891016671139 ~1988
12708491254169838 ~1986
12708623254172478 ~1986
12708743254174878 ~1986
12708803254176078 ~1986
127088231270882319 ~1988
12709211254184238 ~1986
12709601762576078 ~1988
12709883254197678 ~1986
12709919254198398 ~1986
1138
GIMPS The Prime Pages FactorDb.com
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25-04-13