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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
7880777472846638 ~1986
7880903157618078 ~1985
7881059157621198 ~1985
7881059630484738
7881221630497698 ~1986
78813171103384399 ~1987
7881329630506338 ~1986
7881911157638238 ~1985
7881959157639198 ~1985
7882003788200318 ~1987
78822111418797999 ~1987
7882309113505249710 ~1989
7882367241200430310 ~1990
7882697630615778 ~1986
7882733472963998 ~1986
78827331103582639
7882991157659838 ~1985
7883047113515876910 ~1989
7883159157663198 ~1985
7883303157666078 ~1985
7883333472999998 ~1986
7883341473000478 ~1986
78835073784083379 ~1988
7883717473023038 ~1986
78838198199171779 ~1989
Exp. Prime Factor Digits Year
78838391892121379 ~1988
7884119157682398 ~1985
7884683157693678 ~1985
7884871788487118 ~1987
7885453473127198 ~1986
7885511157710238 ~1985
7885523157710478 ~1985
7885901473154078 ~1986
7886111630888898 ~1986
7886639157732798 ~1985
7886687630934978 ~1986
7886693473201598 ~1986
7886699630935938 ~1986
7886783157735678 ~1985
78867891104150479 ~1987
78867973627926639 ~1988
7887247788724718 ~1987
78873171892956099 ~1988
78874095047941779 ~1989
78874271261988339 ~1987
7887611157752238 ~1985
7887707631016578 ~1986
7887721473263278 ~1986
7887953473277198 ~1986
78880371104325199 ~1987
Exp. Prime Factor Digits Year
7888157631052578 ~1986
7888217631057378 ~1986
7888451157769038 ~1985
7888483788848318 ~1987
7888877473332638 ~1986
7888919631113538 ~1986
7888921473335278 ~1986
78890591420030639 ~1987
7889099631127938 ~1986
7889291157785838 ~1985
7889291631143298
7889627631170178 ~1986
7889639631171138 ~1986
7889663157793278 ~1985
7889723157794478 ~1985
7889881473392878 ~1986
7889891157797838 ~1985
7890119157802398 ~1985
78901191420221439
7890143157802878 ~1985
7890191157803838 ~1985
7890251157805038 ~1985
78906071420309279 ~1987
7890611157812238 ~1985
7890923157818478 ~1985
Exp. Prime Factor Digits Year
7891031631282498 ~1986
7891211157824238 ~1985
7891379157827598 ~1985
7891739157834798 ~1985
7891979157839598 ~1985
7891979631358338
7892051157841038 ~1985
7892057473523438 ~1986
7892257473535438 ~1986
7892603157852078 ~1985
7893047631443778 ~1986
7893311157866238 ~1985
7893331789333118 ~1987
7893359631468738 ~1986
7893533473611998 ~1986
7893581473614878 ~1986
7893673473620398 ~1986
7893779157875598 ~1985
7894021473641278 ~1986
78941532368245919 ~1988
7894219789421918 ~1987
7894619631569538 ~1986
7894751157895038 ~1985
7894807789480718 ~1987
7894871157897438 ~1985
932
GIMPS The Prime Pages FactorDb.com
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26-05-03