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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.
Exp. Prime Factor Digits Year
4887227140752137710 ~1989
488729997745997 ~1983
48877033128129939 ~1987
488831997766397 ~1983
488839197767837 ~1983
4888427391074178 ~1985
488861997772397 ~1983
4888837293330238 ~1984
4888997391119778 ~1985
488906397781277 ~1983
4889077782252338 ~1985
488924397784877 ~1983
4889279391142338 ~1985
48894318703187199 ~1988
48894611075681439 ~1986
488947197789437 ~1983
488954397790877 ~1983
4889609391168738 ~1985
488971197794237 ~1983
4890133293407998 ~1984
4890247489024718 ~1985
4890293293417598 ~1984
489032397806477 ~1983
4890331489033118 ~1985
4890547489054718 ~1985
Exp. Prime Factor Digits Year
489056397811277 ~1983
489065997813197 ~1983
4890761391260898 ~1985
4890841293450478 ~1984
4890857293451438 ~1984
489091197818237 ~1983
489097197819437 ~1983
48910014695360979 ~1987
4891091391287298 ~1985
4891217391297378 ~1985
4891297293477838 ~1984
4891331880439598 ~1986
4891547391323778 ~1985
489182397836477 ~1983
4891897293513838 ~1984
489200397840077 ~1983
4892009391360738 ~1985
4892021391361698 ~1985
4892057684887998 ~1985
4892197293531838 ~1984
4892257782761138 ~1985
4892351391388098 ~1985
4892401293544078 ~1984
489257997851597 ~1983
4892729391418338 ~1985
Exp. Prime Factor Digits Year
4892893293573598 ~1984
4893041293582478 ~1984
4893157293589438 ~1984
489319197863837 ~1983
4893313293598798 ~1984
489341997868397 ~1983
4893617391489378 ~1985
48937091957483619 ~1986
489374397874877 ~1983
48938291174518979 ~1986
4893851391508098 ~1985
4893869685141678 ~1985
4893937293636238 ~1984
4894049685166878 ~1985
489427197885437 ~1983
4894277293656638 ~1984
4894349391547938 ~1985
4894517685232398 ~1985
489494397898877 ~1983
489527997905597 ~1983
48953231664409839 ~1986
4895377293722638 ~1984
4895399391631938 ~1985
489545997909197 ~1983
4895503489550318 ~1985
Exp. Prime Factor Digits Year
4895533293731998 ~1984
48956291174950979 ~1986
4895641293738478 ~1984
489577197915437 ~1983
4895827881248878 ~1986
489584397916877 ~1983
4895993685439038 ~1985
4896077391686178 ~1985
489623997924797 ~1983
48963491175123779 ~1986
489638397927677 ~1983
4896457293787438 ~1984
489649197929837 ~1983
48965331175167939 ~1986
489665997933197 ~1983
4896659391732738
489671997934397 ~1983
489686397937277 ~1983
489697197939437 ~1983
489710397942077 ~1983
48972372252729039 ~1987
4897337293840238 ~1984
4897337391786978
489758397951677 ~1983
489781197956237 ~1983
686
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25-10-26