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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
25367991877231279 ~1985
2536873608849538 ~1984
2536903608856738 ~1984
2537083253708318 ~1983
25372192638707779 ~1985
2537237202978978 ~1982
2537347253734718 ~1983
2537363608967138 ~1984
253799950759997 ~1981
2537999203039938
2538091253809118 ~1983
2538101152286078 ~1982
25381132639637539 ~1985
2538157152289438 ~1982
2538241152294478 ~1982
2538337609200898 ~1984
253835950767197 ~1981
253847950769597 ~1981
2538493406158898 ~1983
2538521152311278 ~1982
2538527609246498 ~1984
2538617609268098 ~1984
2538619253861918 ~1983
2538619609268578
253880350776077 ~1981
Exp. Prime Factor Digits Year
253898350779677 ~1981
2539157355481998 ~1983
2539213152352798 ~1982
2539343660229198 ~1984
2539393152363598 ~1982
2539513406322098 ~1983
25395671015826819 ~1984
253957150791437 ~1981
2539571116312351910
2539573406331698 ~1983
2539577152374638 ~1982
2539577609498498
25395772793534719
2539633406341298 ~1983
253987150797437 ~1981
2540071406411378 ~1983
2540099457217838 ~1983
25401412184521279 ~1985
2540183183401212710 ~1987
254023150804637 ~1981
2540479254047918 ~1983
2540537609728898 ~1984
2540597152435838 ~1982
2540617152437038 ~1982
254090350818077 ~1981
Exp. Prime Factor Digits Year
2540933355730638 ~1983
2540981203278498 ~1982
2541043406566898 ~1983
2541127254112718 ~1983
2541563813300178 ~1984
254168350833677 ~1981
254174350834877 ~1981
254191150838237 ~1981
2541997152519838 ~1982
2542051254205118 ~1983
2542109203368738 ~1982
254222350844477 ~1981
2542471406795378 ~1983
25424811983135199 ~1985
254261950852397 ~1981
2542649355970878 ~1983
2542699254269918 ~1983
2542733355982638 ~1983
25429511068039439 ~1984
2543327203466178 ~1982
2543389763016718 ~1984
254339950867997 ~1981
254342350868477 ~1981
2543441152606478 ~1982
2543461406953778 ~1983
Exp. Prime Factor Digits Year
254369950873997 ~1981
254377150875437 ~1981
2543873356142238 ~1983
2543921152635278 ~1982
254401150880237 ~1981
2544041152642478 ~1982
2544041203523298
254413150882637 ~1981
2544131203530498
254453950890797 ~1981
2544637152678238 ~1982
2544643610714338 ~1984
2544767458058078 ~1983
25447671425069539
2544959203596738 ~1982
25450011832400739 ~1985
2545021152701278 ~1982
2545079203606338 ~1982
2545141152708478 ~1982
25451411221667699
2545211203616898 ~1982
254527150905437 ~1981
2545271203621698
2545307203624578 ~1982
254545150909037 ~1981
457
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25-12-07