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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
260840571565043439 ~1990
26084351521687038 ~1989
260845571565073439 ~1990
260847312608473119 ~1991
260853412086827299 ~1990
260857396260577379 ~1992
26085959521719198 ~1989
26086691521733838 ~1989
26086799521735998 ~1989
26087063521741278 ~1989
260871617826148319 ~1992
26087219521744398 ~1989
26087339521746798 ~1989
260874173652238399 ~1991
26087651521753038 ~1989
26087903521758078 ~1989
260880171565281039 ~1990
260881576261157699 ~1992
26088323521766478 ~1989
260884731565308399 ~1990
26088631292192667310 ~1993
26088743521774878 ~1989
260887872608878719 ~1991
26089103521782078 ~1989
26089379521787598 ~1989
Exponent Prime Factor Digits Year
26090951521819038 ~1989
260917815740191839 ~1991
260920211565521279 ~1990
26092091521841838 ~1989
260921811565530879 ~1990
26092259521845198 ~1989
260922674174762739 ~1991
26092991521859838 ~1989
260936331565617999 ~1990
260940231633485839911 ~1995
260940412087523299 ~1990
26094059521881198 ~1989
260946173653246399 ~1991
26094683521893678 ~1989
26094863521897278 ~1989
26094899521897998 ~1989
26095031521900638 ~1989
260950571565703439 ~1990
260952912609529119 ~1991
260957872087662979 ~1990
26095871521917438 ~1989
26096039521920798 ~1989
260964312609643119 ~1991
26096579521931598 ~1989
26096663521933278 ~1989
Exponent Prime Factor Digits Year
26096771521935438 ~1989
26097251521945038 ~1989
260973472087787779 ~1990
26098151521963038 ~1989
260984211565905279 ~1990
26098511521970238 ~1989
26098619521972398 ~1989
26098739521974798 ~1989
260989371565936239 ~1990
26099413182695891110 ~1993
260995872609958719 ~1991
26099999521999998 ~1989
26100071522001438 ~1989
26100983522019678 ~1989
261010371566062239 ~1990
26101499522029998 ~1989
261016971566101839 ~1990
26101931522038638 ~1989
26101979522039598 ~1989
26103431522068638 ~1989
26104079522081598 ~1989
26104283522085678 ~1989
26105291522105838 ~1989
26105399522107998 ~1989
26105543522110878 ~1989
Exponent Prime Factor Digits Year
26105879522117598 ~1989
26105903522118078 ~1989
261059832610598319 ~1991
26106011522120238 ~1989
26106803522136078 ~1989
26107079522141598 ~1989
261071272088570179 ~1990
26107271522145438 ~1989
26107331522146638 ~1989
26107619522152398 ~1989
26108531522170638 ~1989
261085811566514879 ~1990
26109131522182638 ~1989
26109491522189838 ~1989
26109659522193198 ~1989
26110319522206398 ~1989
26110499522209998 ~1989
26110523522210478 ~1989
26110811522216238 ~1989
26110919522218398 ~1989
26111171522223438 ~1989
26111231522224638 ~1989
26111639522232798 ~1989
26111699522233998 ~1989
26112011522240238 ~1989
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25-05-04