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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
42222028613377762288911 ~2008
42225823132533549387911 ~2007
4222595759844519151910 ~2006
4222729103844545820710 ~2006
42227926193378234095311 ~2008
4223017031844603406310 ~2006
42231062539290833756711 ~2009
42233623913378689912911 ~2008
4223415659844683131910 ~2006
4223572211844714442310 ~2006
422359546916894381876112 ~2009
4223778203844755640710 ~2006
42239789594223978959111 ~2008
42241184474224118447111 ~2008
422448135722812199327912 ~2010
4224679451844935890310 ~2006
4224967739844993547910 ~2006
42250837212535050232711 ~2007
4225100591845020118310 ~2006
42252058132535123487911 ~2007
4225347239845069447910 ~2006
4225551251845110250310 ~2006
42255556013380444480911 ~2008
42255710993380456879311 ~2008
4225791431845158286310 ~2006
Exponent Prime Factor Digits Year
42259631993380770559311 ~2008
422598577937188674855312 ~2010
42263857193381108575311 ~2008
42266790895917350724711 ~2008
42267951012536077060711 ~2007
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
4229533211845906642310 ~2006
4229558219845911643910 ~2006
4229652659845930531910 ~2006
4229722979845944595910 ~2006
4229733083845946616710 ~2006
Exponent Prime Factor Digits Year
4229912759845982551910 ~2006
4229952959845990591910 ~2006
42301027572538061654311 ~2007
4230247403846049480710 ~2006
42304484212538269052711 ~2007
4230850691846170138310 ~2006
4231028843846205768710 ~2006
42311258873384900709711 ~2008
4231254119846250823910 ~2006
4231401743846280348710 ~2006
4231701263846340252710 ~2006
4231754759846350951910 ~2006
4231821851846364370310 ~2006
42319561612539173696711 ~2007
4232061023846412204710 ~2006
42322408013385792640911 ~2008
4232259611846451922310 ~2006
4232544551846508910310 ~2006
42326894572539613674311 ~2007
4232766203846553240710 ~2006
4233288551846657710310 ~2006
4233360539846672107910 ~2006
423344497917780468911912 ~2009
42335806972540148418311 ~2007
42336247193386899775311 ~2008
Exponent Prime Factor Digits Year
4233723743846744748710 ~2006
4233737639846747527910 ~2006
4233758099846751619910 ~2006
4233774719846754943910 ~2006
42338029812540281788711 ~2007
4233988763846797752710 ~2006
4234045811846809162310 ~2006
4234120199846824039910 ~2006
4234159379846831875910 ~2006
4234171559846834311910 ~2006
42342020393387361631311 ~2008
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
4129
GIMPS The Prime Pages FactorDb.com
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25-07-20