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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
1894247151539778 ~1981
1894381113662878 ~1981
1894439151555138 ~1981
1894639189463918 ~1982
189464337892877 ~1980
18946911061026979 ~1984
1894933113695998 ~1981
1895027151602178 ~1981
189505137901037 ~1980
1895081568524318 ~1983
1895207492753838 ~1983
1895501720290398 ~1983
1895507151640578 ~1981
1895513113730798 ~1981
18956091175277599 ~1984
1895627454950498 ~1983
189571137914237 ~1980
18957491213279379 ~1984
1895779454986978 ~1983
189590337918077 ~1980
18959091365054499 ~1984
1895989455037378 ~1983
18959891365112099
1896071341292798 ~1982
1896091189609118 ~1982
Exp. Prime Factor Digits Year
1896091341296398
189626337925277 ~1980
189643137928637 ~1980
1896581720700798 ~1983
1896617265526398 ~1982
1896659151732738 ~1981
1896689151735138 ~1981
1896899607007698 ~1983
1896959151756738 ~1981
1896989455277378 ~1983
1897069455296578 ~1983
1897073455297538 ~1983
1897121113827278 ~1981
189713937942797 ~1980
1897237113834238 ~1981
1897327303572338 ~1982
1897367151789378 ~1981
1897409151792738 ~1981
1897459189745918 ~1982
1897561417463438 ~1983
1897667151813378 ~1981
1897717113863038 ~1981
189775137955037 ~1980
1897823607303378 ~1983
1897871151829698 ~1981
Exp. Prime Factor Digits Year
1897871797105838
189794337958877 ~1980
189797937959597 ~1980
189799137959837 ~1980
1898077113884638 ~1981
18981531025002639 ~1984
1898201113892078 ~1981
189824337964877 ~1980
1898279455586978 ~1983
18984311252964479 ~1984
1898539645503278 ~1983
18985391556801999
1898591341746398 ~1982
1898641113918478 ~1981
18986411822695379
189878337975677 ~1980
1898861113931678 ~1981
1899017151921378 ~1981
189911937982397 ~1980
1899419151953538 ~1981
1899421113965278 ~1981
1899481417885838 ~1983
1899637303941938 ~1982
1899647151971778 ~1981
1899917151993378 ~1981
Exp. Prime Factor Digits Year
1899917265988398
18999831405987439 ~1984
1900147190014718 ~1982
1900147342026478
1900169152013538 ~1981
1900177456042498 ~1983
1900181152014498 ~1981
1900273304043698 ~1982
1900397266055598 ~1982
190049938009997 ~1980
1900499456119778
190057138011437 ~1980
1900621114037278 ~1981
19006731178417279 ~1984
1900687304109938 ~1982
1900711190071118 ~1982
1900879456210978 ~1983
1900937152074978 ~1981
1901021114061278 ~1981
1901353114081198 ~1981
1901407456337698 ~1983
1901437114086238 ~1981
19015671255034239 ~1984
1901597114095838 ~1981
1901597266223598
375
GIMPS The Prime Pages FactorDb.com
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25-09-07