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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
4782161286929678 ~1984
478219195643837 ~1983
4782311382584898 ~1985
4782571478257118 ~1985
4782607478260718 ~1985
4782971382637698 ~1985
478328395665677 ~1983
4783469382677538 ~1985
4783523111934438310 ~1988
4783577382686178 ~1985
4783589267880984110 ~1989
478397995679597 ~1983
4784009669761278 ~1985
4784057669767998 ~1985
4784501382760098 ~1985
47845036889684339 ~1988
47849217273079939 ~1988
4784947478494718 ~1985
4785101287106078 ~1984
47851131435533919 ~1986
478525195705037 ~1983
4785373287122398 ~1984
478538395707677 ~1983
4785419382833538 ~1985
478561195712237 ~1983
Exp. Prime Factor Digits Year
47856233158511199 ~1987
4785773670008238 ~1985
47860492584466479 ~1987
4786051478605118 ~1985
478609195721837 ~1983
4786193287171598 ~1984
478634395726877 ~1983
4786471478647118 ~1985
4786697287201838 ~1984
4786697670137598
478670395734077 ~1983
47867031244542799
478706395741277 ~1983
4787213670209838 ~1985
478733995746797 ~1983
4787593287255598 ~1984
4787597287255838 ~1984
4787771383021698 ~1985
4787803478780318 ~1985
478801195760237 ~1983
478813195762637 ~1983
4788731383098498 ~1985
4788733287323998 ~1984
47887571149301699 ~1986
47887672298608179 ~1987
Exp. Prime Factor Digits Year
478886395777277 ~1983
4788929383114338 ~1985
4788929670450078
4789073287344398 ~1984
4789073670470238
478909195781837 ~1983
478919995783997 ~1983
4789199383135938
4789541383163298 ~1985
47896371149512899 ~1986
4790047479004718 ~1985
479006395801277 ~1983
479011195802237 ~1983
4790237383218978 ~1985
479033995806797 ~1983
4790419862275438 ~1985
479045995809197 ~1983
47905371149728899 ~1986
479069995813997 ~1983
4791043479104318 ~1985
47910491149851779 ~1986
4791077287464638 ~1984
4791089383287138 ~1985
47911972683070339 ~1987
4791239383299138 ~1985
Exp. Prime Factor Digits Year
4791257383300578 ~1985
479144395828877 ~1983
47915032395751519 ~1987
479177995835597 ~1983
4791881287512878 ~1984
479191195838237 ~1983
4791937287516238 ~1984
479195995839197 ~1983
47920192396009519 ~1987
479203195840637 ~1983
4792141287528478 ~1984
4792153766744498 ~1985
4792169383373538 ~1985
4792247383379778 ~1985
479243995848797 ~1983
479245195849037 ~1983
4792639246341644710 ~1989
479264395852877 ~1983
479287195857437 ~1983
4792889671004478 ~1985
47929331150303939 ~1986
479336395867277 ~1983
479353195870637 ~1983
4793851767016178 ~1985
47938571917542819 ~1986
677
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25-10-26