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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
386467177293437 ~1982
386468377293677 ~1982
3864811695665998 ~1985
3864827309186178 ~1984
3865123386512318 ~1984
38651872164504739 ~1986
3865513618482098 ~1985
3865517309241378 ~1984
3865577541180798 ~1985
3865601309248098 ~1984
3865663618506098 ~1985
3865993618558898 ~1985
386609977321997 ~1982
386617177323437 ~1982
38663931237245779 ~1985
386654377330877 ~1982
386665177333037 ~1982
3867133232027998 ~1984
3867163618746098 ~1985
386719177343837 ~1982
3867337232040238 ~1984
386735977347197 ~1982
38673611160208319 ~1985
386791177358237 ~1982
3868013232080798 ~1984
Exp. Prime Factor Digits Year
386803177360637 ~1982
386807977361597 ~1982
3868093850980478 ~1985
3868169309453538 ~1984
38681871005728639 ~1985
3868253232095198 ~1984
386828377365677 ~1982
386861977372397 ~1982
38686791934339519 ~1986
3868961309516898 ~1984
386911177382237 ~1982
3869111696439998
38691915029948319 ~1987
38692311006000079 ~1985
3869263386926318 ~1984
3869297232157838 ~1984
386939977387997 ~1982
386963977392797 ~1982
386975977395197 ~1982
387001177400237 ~1982
387005977401197 ~1982
38702112244722399 ~1986
387029977405997 ~1982
38706891161206719 ~1985
3870899309671938 ~1984
Exp. Prime Factor Digits Year
3870941232256478 ~1984
387098377419677 ~1982
3871073232264398 ~1984
38711591858156339 ~1986
3871201232272078 ~1984
38713398052385139 ~1987
3871397309711778 ~1984
3871537232292238 ~1984
387158377431677 ~1982
38715831626064879
3871619696891438 ~1985
3871657619465138 ~1985
3871661232299678 ~1984
38717811161534319 ~1985
3871787929228898 ~1985
387182377436477 ~1982
3872249309779938 ~1984
38722992478271379 ~1986
3872417232345038 ~1984
38725212788215139 ~1986
3872677232360638 ~1984
3872797232367838 ~1984
3872887387288718 ~1984
38729691161890719 ~1985
3872971192099361710 ~1988
Exp. Prime Factor Digits Year
3873313929595138 ~1985
3873413542277838 ~1985
387343177468637 ~1982
387349177469837 ~1982
3873647697256478 ~1985
3873697232421838 ~1984
387373177474637 ~1982
3873781619804978 ~1985
3873809542333278 ~1985
3873941309915298 ~1984
38741111549644419 ~1986
3874237232454238 ~1984
3874243619878898 ~1985
387443977488797 ~1982
387476377495277 ~1982
3874853929964738 ~1985
38748671549946819 ~1986
387491977498397 ~1982
38749191627465999
3874957619993138 ~1985
3875057232503438 ~1984
3875101232506078 ~1984
3875159310012738 ~1984
3875239387523918 ~1984
38753173022747279 ~1986
604
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26-04-05