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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
394136378827277 ~1983
3941447945947298 ~1985
394147178829437 ~1983
3941551630648178 ~1985
394202378840477 ~1983
3942137315370978 ~1984
394231178846237 ~1983
394255178851037 ~1983
3942569551959678 ~1985
3942677315414178 ~1984
3942721236563278 ~1984
3942989315439138 ~1984
39429891182896719
3943153236589198 ~1984
3943153867493678
394321178864237 ~1983
394325978865197 ~1983
394331978866397 ~1983
394345178869037 ~1983
394363178872637 ~1983
39436371498582079 ~1986
3943673552114238 ~1985
3943717630994738 ~1985
3943769315501538 ~1984
394379978875997 ~1983
Exp. Prime Factor Digits Year
39438532208557699 ~1986
394387178877437 ~1983
394388378877677 ~1983
3944009552161278 ~1985
394418378883677 ~1983
3944249315539938 ~1984
3944249552194878
3944411315552898 ~1984
3944497631119538 ~1985
3944597552243598 ~1985
394471178894237 ~1983
3944839710071038 ~1985
394505978901197 ~1983
3945077236704638 ~1984
3945079394507918 ~1984
3945101236706078 ~1984
3945299710153838 ~1985
3945449315635938 ~1984
3945457631273138 ~1985
3945607394560718 ~1984
39456073787782739
394573178914637 ~1983
3945883631341298 ~1985
3945913236754798 ~1984
39459175287528799 ~1987
Exp. Prime Factor Digits Year
394592378918477 ~1983
39459734735167619 ~1987
394613978922797 ~1983
3946157315692578 ~1984
39461572130924799
3946211315696898 ~1984
3946247315699778 ~1984
39464211894282099 ~1986
39464271026071039 ~1985
3946447394644718 ~1984
39465711026108479 ~1985
39467271026149039 ~1985
394676378935277 ~1983
3946837631493938 ~1985
3947507315800578 ~1984
394757978951597 ~1983
394759178951837 ~1983
3947753236865198 ~1984
394783178956637 ~1983
394790378958077 ~1983
3948173947561538 ~1985
3948277236896638 ~1984
394838378967677 ~1983
3948473236908398 ~1984
3948547394854718 ~1984
Exp. Prime Factor Digits Year
394880378976077 ~1983
39488091895428339 ~1986
3948817631810738 ~1985
3948853236931198 ~1984
3948859394885918 ~1984
3949109552875278 ~1985
394927178985437 ~1983
3949433236965998 ~1984
3949453236967198 ~1984
3949579394957918 ~1984
394961978992397 ~1983
3949793552971038 ~1985
394987178997437 ~1983
395009979001997 ~1983
3950161632025778 ~1985
395029179005837 ~1983
39502911264093139
395033979006797 ~1983
39503932449243679 ~1986
3950911711163998 ~1985
39509271027241039 ~1985
3950941632150578 ~1985
395107179021437 ~1983
3951121632179378 ~1985
3951151711207198 ~1985
606
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26-01-11