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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
511293061306775836710 ~2000
511296323102259264710 ~1999
511304879102260975910 ~1999
511320899102264179910 ~1999
511330217306798130310 ~2000
511331273306798763910 ~2000
511332779102266555910 ~1999
511332917409066333710 ~2000
5113478771227234904911 ~2002
511352651102270530310 ~1999
511356431102271286310 ~1999
511359341409087472910 ~2000
511367113306820267910 ~2000
511373003102274600710 ~1999
511381823102276364710 ~1999
511382951102276590310 ~1999
511392179102278435910 ~1999
511406617818250587310 ~2001
511413977306848386310 ~2000
511434043818294468910 ~2001
511439459102287891910 ~1999
511445243102289048710 ~1999
5114536331125197992711 ~2002
511479659102295931910 ~1999
511484849409187879310 ~2000
Exponent Prime Factor Digits Year
511488959102297791910 ~1999
511494719102298943910 ~1999
511508219102301643910 ~1999
511511999102302399910 ~1999
511536671102307334310 ~1999
511540643102308128710 ~1999
511552883102310576710 ~1999
511552997306931798310 ~2000
511583651102316730310 ~1999
511599383102319876710 ~1999
511599611102319922310 ~1999
511608793306965275910 ~2000
511619639102323927910 ~1999
511626383102325276710 ~1999
511648523102329704710 ~1999
511661831102332366310 ~1999
511667063102333412710 ~1999
511695323102339064710 ~1999
511719071921094327910 ~2001
511736999102347399910 ~1999
511738043102347608710 ~1999
5117504031228200967311 ~2002
511768091102353618310 ~1999
511769231102353846310 ~1999
511803113307081867910 ~2000
Exponent Prime Factor Digits Year
511809587409447669710 ~2000
511823219102364643910 ~1999
511850771102370154310 ~1999
511865287511865287110 ~2001
5118692511330860052711 ~2002
511872071102374414310 ~1999
511886077307131646310 ~2000
511906897307144138310 ~2000
511913107511913107110 ~2001
511919411409535528910 ~2000
511951709409561367310 ~2000
511970531102394106310 ~1999
511992599102398519910 ~1999
511997771102399554310 ~1999
512006039102401207910 ~1999
512033243102406648710 ~1999
512035613307221367910 ~2000
512056619102411323910 ~1999
512056763102411352710 ~1999
512067151921720871910 ~2001
512077931102415586310 ~1999
512080931102416186310 ~1999
512095583102419116710 ~1999
512096171102419234310 ~1999
512110063512110063110 ~2001
Exponent Prime Factor Digits Year
512119763102423952710 ~1999
512128703102425740710 ~1999
512144573307286743910 ~2000
512159287512159287110 ~2001
512162351102432470310 ~1999
512199113307319467910 ~2000
512217653307330591910 ~2000
512223521307334112710 ~2000
512232319922018174310 ~2001
512251823102450364710 ~1999
512269139102453827910 ~1999
512270111409816088910 ~2000
512273483102454696710 ~1999
512273831102454766310 ~1999
512278043102455608710 ~1999
512287961409830368910 ~2000
512290561307374336710 ~2000
512316317307389790310 ~2000
512317163102463432710 ~1999
512331959102466391910 ~1999
512340431102468086310 ~1999
512384423102476884710 ~1999
512397617307438570310 ~2000
512413091102482618310 ~1999
512419643102483928710 ~1999
3243
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25-06-08