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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
218536791748294339 ~1990
21854471437089438 ~1988
21854543437090878 ~1988
218545611748364899 ~1990
21854699437093998 ~1988
21854711437094238 ~1988
218548011748384099 ~1990
21855143437102878 ~1988
21855503437110078 ~1988
21855923437118478 ~1988
21855959437119198 ~1988
218572331311433999 ~1990
21857519437150398 ~1988
21857579437151598 ~1988
21857663437153278 ~1988
218578731311472399 ~1990
218584275246022499 ~1991
21858731437174638 ~1988
21858803437176078 ~1988
21859163437183278 ~1988
21859249153014743110 ~1992
218593371748746979 ~1990
21859391437187838 ~1988
21859451437189038 ~1988
21859451144272376710
Exponent Prime Factor Digits Year
21860711437214238 ~1988
218618691748949539 ~1990
21862031437240638 ~1988
218623635246967139 ~1991
21862751437255038 ~1988
21863531437270638 ~1988
21863771437275438 ~1988
21863843437276878 ~1988
21863951437279038 ~1988
21864659437293198 ~1988
21865331437306638 ~1988
21865379437307598 ~1988
21865583437311678 ~1988
21865619437312398 ~1988
21866699437333998 ~1988
21867143437342878 ~1988
21867383437347678 ~1988
21868139437362798 ~1988
218682193936279439 ~1991
218685011312110079 ~1990
218685291749482339 ~1990
21868571437371438 ~1988
21868631437372638 ~1988
218686315685844079
218686695248480579 ~1991
Exponent Prime Factor Digits Year
21869279437385598 ~1988
21869339437386798 ~1988
21869483437389678 ~1988
218696931312181599 ~1990
218697192186971919 ~1990
21870011437400238 ~1988
21870419437408398 ~1988
218707331312243999 ~1990
21870791437415838 ~1988
21871043437420878 ~1988
21871331437426638 ~1988
21872171437443438 ~1988
218723696999158099 ~1991
21872663437453278 ~1988
21872723437454478 ~1988
21872783437455678 ~1988
21872891437457838 ~1988
21873191437463838 ~1988
21873433100617791910 ~1992
21873539437470798 ~1988
218744091749952739 ~1990
21875123437502478 ~1988
21875291437505838 ~1988
21875303437506078 ~1988
21875363437507278 ~1988
Exponent Prime Factor Digits Year
21875699437513998 ~1988
21876143437522878 ~1988
21876779437535598 ~1988
21876983437539678 ~1988
218771091750168739 ~1990
21877319437546398 ~1988
21877799437555998 ~1988
218792693063097679 ~1990
218795531312773199 ~1990
21879743437594878 ~1988
21879899437597998 ~1988
218805411312832479 ~1990
21880583437611678 ~1988
218806973063297599 ~1990
21880763437615278 ~1988
218808471750467779 ~1990
21881039437620798 ~1988
21881063437621278 ~1988
21881557205686635910 ~1992
21882359437647198 ~1988
21882491437649838 ~1988
21882551437651038 ~1988
218825571312953439 ~1990
21882911437658238 ~1988
218829971312979839 ~1990
1565
GIMPS The Prime Pages FactorDb.com
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26-03-08