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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
2144161471715438 ~1983
2144209471725998 ~1983
2144251343080178 ~1983
2144279171542338 ~1982
214439942887997 ~1980
2144501128670078 ~1982
21445072744968979 ~1985
2144551214455118 ~1982
21446833088343539 ~1985
2144729300262078 ~1982
2144801171584098 ~1982
214502342900477 ~1980
21450831930574719 ~1984
2145137171610978 ~1982
2145287386151678 ~1983
2145287514868898
2145331343252978 ~1983
214544342908877 ~1980
2145497128729838 ~1982
214555142911037 ~1980
2145631343300978 ~1983
214577942915597 ~1980
2146093343374898 ~1983
2146093472140478
214628342925677 ~1980
Exp. Prime Factor Digits Year
21463571373668499 ~1984
2146393515134338 ~1983
2146457128787438 ~1982
2146519515164578 ~1983
2146561987418078 ~1984
214661942932397 ~1980
2146687343469938 ~1983
2147009109926860910 ~1986
2147137128828238 ~1982
2147237300613198 ~1982
2147263214726318 ~1982
214727942945597 ~1980
2147279171782338
2147297300621598 ~1982
2147501128850078 ~1982
2147657171812578 ~1982
2147693300677038 ~1982
2147941472547038 ~1983
2147987171838978 ~1982
214801142960237 ~1980
2148053128883198 ~1982
21483431546806979 ~1984
2148491386728398 ~1983
214859942971997 ~1980
2149003214900318 ~1982
Exp. Prime Factor Digits Year
2149031171922498 ~1982
21491274685096879 ~1985
214913942982797 ~1980
2149181128950878 ~1982
214921142984237 ~1980
21492833137953199 ~1985
214933142986637 ~1980
214937942987597 ~1980
214939142987837 ~1980
214988342997677 ~1980
2150101344016178 ~1983
215017143003437 ~1980
2150209516050178 ~1983
2150383215038318 ~1982
2150383516091938
215041143008237 ~1980
2150441129026478 ~1982
215047143009437 ~1980
215063943012797 ~1980
215065143013037 ~1980
215066343013277 ~1980
2150689645206718 ~1983
2150741129044478 ~1982
2150791344126578 ~1983
21508391763687999 ~1984
Exp. Prime Factor Digits Year
2150881129052878 ~1982
2150977129058638 ~1982
2151011172080898 ~1982
2151101645330318 ~1983
215117943023597 ~1980
215125143025037 ~1980
2151251172100098
2151377645413118 ~1983
215156343031277 ~1980
2151619215161918 ~1982
2151701129102078 ~1982
215207943041597 ~1980
215210343042077 ~1980
21522011549584739 ~1984
215221143044237 ~1980
21522191033065139 ~1984
2152229172178338 ~1982
21522291334381999
2152357990084238 ~1984
215249943049997 ~1980
2152511172200898 ~1982
215257143051437 ~1980
2152589172207138 ~1982
215269143053837 ~1980
215273943054797 ~1980
401
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25-05-04