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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
21710032084162899
217115943423197 ~1981
2171159521078178
2171161130269678 ~1982
217121943424397 ~1981
217124343424877 ~1981
2171249303974878 ~1983
21712491042199539
2171437347429938 ~1983
2171621130297278 ~1982
217175943435197 ~1981
21718991954709119 ~1985
2171929228921316710 ~1987
2171951173756098 ~1982
2172047173763778 ~1982
2172091217209118 ~1982
2172151347544178 ~1983
217223943444797 ~1981
2172389173791138 ~1982
2172397868958818 ~1984
2172433347589298 ~1983
2172491695197138 ~1983
217256343451277 ~1981
2172581130354878 ~1982
217285143457037 ~1981
Exp. Prime Factor Digits Year
2172977130378638 ~1982
217304343460877 ~1981
21730794172311699 ~1985
2173337652001118 ~1983
2173393130403598 ~1982
21735311956177919 ~1985
2173573130414398 ~1982
2173679386480126310 ~1988
2173729478220398 ~1983
2173777521706498 ~1983
2173819217381918 ~1982
2173993130439598 ~1982
2174017130441038 ~1982
217417143483437 ~1981
2174197130451838 ~1982
21742031434973999 ~1984
2174281130456878 ~1982
2174401478368238 ~1983
21745331522173119 ~1984
217459143491837 ~1981
2174701130482078 ~1982
217495143499037 ~1981
217505943501197 ~1981
217508343501677 ~1981
2175197130511838 ~1982
Exp. Prime Factor Digits Year
2175197522047298
217526343505277 ~1981
2175469100506667910 ~1986
217559943511997 ~1981
2175737522176898 ~1983
2175773652731918 ~1983
217621143524237 ~1981
2176261130575678 ~1982
2176387217638718 ~1982
2176483137989022310 ~1987
2176591348254578 ~1983
2176679174134338 ~1982
2176807740114398 ~1984
2176817304754398 ~1983
217687143537437 ~1981
2176873130612398 ~1982
2176921478922638 ~1983
2177083348333298 ~1983
2177101130626078 ~1982
2177297130637838 ~1982
2177353522564738 ~1983
2177449870979618 ~1984
2177453130647198 ~1982
2177573304860238 ~1983
2177957827623678 ~1984
Exp. Prime Factor Digits Year
217799943559997 ~1981
217808343561677 ~1981
2178131914815038 ~1984
2178133130687998 ~1982
2178149697007698 ~1983
2178151217815118 ~1982
2178151392067198
217838343567677 ~1981
2178439217843918 ~1982
217844343568877 ~1981
2178557130713438 ~1982
2178679392162238 ~1983
2178947392210478 ~1983
217913943582797 ~1981
2179139697324498
217922343584477 ~1981
217976343595277 ~1981
2179769174381538 ~1982
217982343596477 ~1981
2179997305199598 ~1983
218003943600797 ~1981
2180071348811378 ~1983
2180111174408898 ~1982
2180111697635538
21801191046457139 ~1984
421
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26-07-19