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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
248420349684077 ~1981
248432349686477 ~1981
2484353149061198 ~1982
2484539596289378 ~1984
2484569347839678 ~1983
248473149694637 ~1981
248489949697997 ~1981
2484961149097678 ~1982
24851931391708099 ~1984
2485207596449698 ~1984
2485453149127198 ~1982
2485481198838498 ~1982
2485513149130798 ~1982
2485547198843778 ~1982
2485559795378898 ~1984
2485573149134398 ~1982
2485579248557918 ~1983
248564349712877 ~1981
2485937149156238 ~1982
2486243596698338 ~1984
24862871442046479 ~1985
2486371248637118 ~1983
2486459447562638 ~1983
2486521994608418 ~1984
2486551447579198 ~1983
Exp. Prime Factor Digits Year
24865933729889519 ~1986
248663949732797 ~1981
248665149733037 ~1981
2486669198933538 ~1982
2486677746003118 ~1984
24867132984055619 ~1985
2486767447618078 ~1983
2486833397893298 ~1983
2486873149212398 ~1982
2486969198957538 ~1982
248714349742877 ~1981
2487367248736718 ~1983
248762349752477 ~1981
2487637398021938 ~1983
248765949753197 ~1981
2487773597065538 ~1984
24878273184418579 ~1985
248792349758477 ~1981
248801949760397 ~1981
2488067199045378 ~1982
24880991194287539 ~1984
2488181199054498 ~1982
2488181796217938
2488217348350398 ~1983
2488219447879438 ~1983
Exp. Prime Factor Digits Year
248831949766397 ~1981
2488357160747862310 ~1987
2488471398155378 ~1983
2488537149312238 ~1982
2488537398165938
24886672438893679 ~1985
2488901199112098 ~1982
2489107248910718 ~1983
2489107846296398
248918349783677 ~1981
2489213149352798 ~1982
24893711045535839 ~1984
24894132389836499 ~1985
248942349788477 ~1981
2489533149371998 ~1982
248963949792797 ~1981
248975949795197 ~1981
2489813149388798 ~1982
2489909348587278 ~1983
248999949799997 ~1981
249002349800477 ~1981
2490127448222878 ~1983
2490209796866898 ~1984
2490329199226338 ~1982
2490329348646078
Exp. Prime Factor Digits Year
2490377199230178 ~1982
2490413348657838 ~1983
2490461199236898 ~1982
2490469747140718 ~1984
24904691942565839
249047949809597 ~1981
2490493149429598 ~1982
2490497199239778 ~1982
2490617149437038 ~1982
2490667597760098 ~1984
24906671444586879
2490731199258498 ~1982
2490737199258978 ~1982
249109149821837 ~1981
2491123597869538 ~1984
24911711046291839 ~1984
2491211797187538 ~1984
2491289348780478 ~1983
2491289597909378
2491471249147118 ~1983
249152349830477 ~1981
2491757149505438 ~1982
24917777176317779 ~1986
2491961149517678 ~1982
2492093149525598 ~1982
442
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25-06-01