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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
42269564717608521647911 ~2009
4227103619845420723910 ~2006
422716696710990634114312 ~2009
4227341543845468308710 ~2006
4227563471845512694310 ~2006
4227801191845560238310 ~2006
42282025012536921500711 ~2007
42285790372537147422311 ~2007
42289524372537371462311 ~2007
42290850732537451043911 ~2007
42292979714229297971111 ~2008
4229313383845862676710 ~2006
4229318279845863655910 ~2006
42293777693383502215311 ~2008
42294093773383527501711 ~2008
4229558219845911643910 ~2006
4229652659845930531910 ~2006
4229722979845944595910 ~2006
4229733083845946616710 ~2006
4229912759845982551910 ~2006
4229952959845990591910 ~2006
42301027572538061654311 ~2007
4230247403846049480710 ~2006
42304484212538269052711 ~2007
4230850691846170138310 ~2006
Exponent Prime Factor Digits Year
4231028843846205768710 ~2006
42311258873384900709711 ~2008
4231254119846250823910 ~2006
4231401743846280348710 ~2006
4231701263846340252710 ~2006
4231754759846350951910 ~2006
4231821851846364370310 ~2006
42319561612539173696711 ~2007
4232061023846412204710 ~2006
42322408013385792640911 ~2008
4232259611846451922310 ~2006
4232544551846508910310 ~2006
4232766203846553240710 ~2006
4233288551846657710310 ~2006
4233360539846672107910 ~2006
423344497917780468911912 ~2009
42335806972540148418311 ~2007
42336247193386899775311 ~2008
4233723743846744748710 ~2006
4233737639846747527910 ~2006
4233758099846751619910 ~2006
4233774719846754943910 ~2006
42338029812540281788711 ~2007
4233988763846797752710 ~2006
4234045811846809162310 ~2006
Exponent Prime Factor Digits Year
4234120199846824039910 ~2006
4234159379846831875910 ~2006
4234171559846834311910 ~2006
42343668597621860346311 ~2009
4234383623846876724710 ~2006
42346404775928496667911 ~2008
4234741271846948254310 ~2006
4234784819846956963910 ~2006
4234953311846990662310 ~2006
4235018759847003751910 ~2006
4235108639847021727910 ~2006
42351338212541080292711 ~2007
42351372132541082327911 ~2007
4235466743847093348710 ~2006
42355067393388405391311 ~2008
42355241335929733786311 ~2008
42358361332541501679911 ~2007
42359770877624758756711 ~2009
42360065812541603948711 ~2007
4236031799847206359910 ~2006
42360865932541651955911 ~2007
4236514703847302940710 ~2006
4236653423847330684710 ~2006
4236991679847398335910 ~2006
4236998819847399763910 ~2006
Exponent Prime Factor Digits Year
42373434016779749441711 ~2008
4237380671847476134310 ~2006
4237420199847484039910 ~2006
42374609932542476595911 ~2007
4237510883847502176710 ~2006
4237515263847503052710 ~2006
4237525091847505018310 ~2006
4237674299847534859910 ~2006
423783925965262724588712 ~2011
42378467772542708066311 ~2007
4237852991847570598310 ~2006
42378634517628154211911 ~2009
4237897019847579403910 ~2006
4238065619847613123910 ~2006
4238129663847625932710 ~2006
4238263979847652795910 ~2006
4238526359847705271910 ~2006
4238630411847726082310 ~2006
4238653283847730656710 ~2006
42388282673391062613711 ~2008
4238916959847783391910 ~2006
4239100559847820111910 ~2006
42392123093391369847311 ~2008
4239366419847873283910 ~2006
42394665713391573256911 ~2008
4015
GIMPS The Prime Pages FactorDb.com
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25-05-04