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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
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
26096771521935438 ~1989
26097251521945038 ~1989
260973472087787779 ~1990
Exponent Prime Factor Digits Year
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
26105879522117598 ~1989
26105903522118078 ~1989
261059832610598319 ~1991
Exponent Prime Factor Digits Year
26106011522120238 ~1989
26106803522136078 ~1989
26107079522141598 ~1989
261071272088570179 ~1990
26107271522145438 ~1989
26107331522146638 ~1989
26107619522152398 ~1989
26108531522170638 ~1989
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
26112419522248398 ~1989
261126432611264319 ~1991
26112743522254878 ~1989
261128112611281119 ~1991
Exponent Prime Factor Digits Year
26113463522269278 ~1989
26114219522284398 ~1989
26114411522288238 ~1989
26114999522299998 ~1989
26115191522303838 ~1989
26116703522334078 ~1989
26116897125361105710 ~1992
26117579522351598 ~1989
26117879522357598 ~1989
26117999522359998 ~1989
261180472089443779 ~1990
26118143522362878 ~1989
26118203522364078 ~1989
261184672089477379 ~1990
26118623522372478 ~1989
261186434178982899 ~1991
26118671522373438 ~1989
261186712089493699
261189411567136479 ~1990
26118959522379198 ~1989
26118971522379438 ~1989
261205272612052719 ~1991
261205274701694879
26120603522412078 ~1989
261209512089676099 ~1990
1607
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25-04-13