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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
42089518212525371092711 ~2007
42090278277576250088711 ~2009
4209129923841825984710 ~2006
4209353339841870667910 ~2006
4209399539841879907910 ~2006
420947637134517706242312 ~2010
4209549203841909840710 ~2006
4209675059841935011910 ~2006
4209797219841959443910 ~2006
4209993323841998664710 ~2006
4209997139841999427910 ~2006
4210195499842039099910 ~2006
42102751973368220157711 ~2008
4210286471842057294310 ~2006
4210380143842076028710 ~2006
4210417979842083595910 ~2006
4210468943842093788710 ~2006
4210652819842130563910 ~2006
42106888732526413323911 ~2007
421077639712632329191112 ~2009
421110851310106660431312 ~2009
42111545573368923645711 ~2008
4211257439842251487910 ~2006
4211286251842257250310 ~2006
4211493743842298748710 ~2006
Exponent Prime Factor Digits Year
42115103834211510383111 ~2008
42115586213369246896911 ~2008
42116027273369282181711 ~2008
4211650403842330080710 ~2006
4211763299842352659910 ~2006
42118702514211870251111 ~2008
4212008039842401607910 ~2006
42120785873369662869711 ~2008
42122252573369780205711 ~2008
4212247619842449523910 ~2006
42122576772527354606311 ~2007
42124214693369937175311 ~2008
4212499163842499832710 ~2006
42125124532527507471911 ~2007
4212525623842505124710 ~2006
42125635673370050853711 ~2008
42125925132527555507911 ~2007
42129673219268528106311 ~2009
42130663397583519410311 ~2009
4213091231842618246310 ~2006
42131126212527867572711 ~2007
4213134203842626840710 ~2006
42132334212527940052711 ~2007
42133437535898681254311 ~2008
421346668710955013386312 ~2009
Exponent Prime Factor Digits Year
42135686412528141184711 ~2007
4213742783842748556710 ~2006
4213747379842749475910 ~2006
42137971493371037719311 ~2008
4213886723842777344710 ~2006
421391944912641758347112 ~2009
4214363183842872636710 ~2006
4214383643842876728710 ~2006
421443297710114639144912 ~2009
4214708111842941622310 ~2006
4214772143842954428710 ~2006
4214912363842982472710 ~2006
4215402839843080567910 ~2006
4215576119843115223910 ~2006
4215939443843187888710 ~2006
42159453172529567190311 ~2007
4216024283843204856710 ~2006
4216076159843215231910 ~2006
42162716812529763008711 ~2007
4216310771843262154310 ~2006
4216397879843279575910 ~2006
4216411691843282338310 ~2006
42165298975903141855911 ~2008
4216662539843332507910 ~2006
4216849163843369832710 ~2006
Exponent Prime Factor Digits Year
4217023319843404663910 ~2006
4217137103843427420710 ~2006
4217201063843440212710 ~2006
4217219999843443999910 ~2006
4217344511843468902310 ~2006
4217449259843489851910 ~2006
4217473703843494740710 ~2006
4217539211843507842310 ~2006
42176572612530594356711 ~2007
4217742383843548476710 ~2006
4218015731843603146310 ~2006
4218171179843634235910 ~2006
4218264191843652838310 ~2006
4218351983843670396710 ~2006
421847235154840140563112 ~2011
42185182793374814623311 ~2008
4218634331843726866310 ~2006
42189904932531394295911 ~2007
42190385412531423124711 ~2007
4219087403843817480710 ~2006
42191041812531462508711 ~2007
4219233971843846794310 ~2006
4219267523843853504710 ~2006
421930027113501760867312 ~2009
4219383071843876614310 ~2006
4333
GIMPS The Prime Pages FactorDb.com
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25-12-07