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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.
Exponent Prime Factor Digits Year
25781219515624398 ~1989
257812194640619439
257812571546875439 ~1990
25781771515635438 ~1989
25781963515639278 ~1989
25782059268133413710 ~1993
25782959515659198 ~1989
25782983515659678 ~1989
25783451515669038 ~1989
25783463515669278 ~1989
25783799515675998 ~1989
25784051515681038 ~1989
25784243515684878 ~1989
25784663515693278 ~1989
257851192062809539 ~1990
25785491515709838 ~1989
25785839515716798 ~1989
25785911515718238 ~1989
25786199515723998 ~1989
25786571515731438 ~1989
25786751515735038 ~1989
257867931547207599 ~1990
257882931547297599 ~1990
257885572063084579 ~1990
25788599515771998 ~1989
Exponent Prime Factor Digits Year
25789079515781598 ~1989
25789343515786878 ~1989
25789979515799598 ~1989
25790399515807998 ~1989
25790423515808478 ~1989
257906272063250179 ~1990
25790711515814238 ~1989
25791191515823838 ~1989
25791263515825278 ~1989
25792103515842078 ~1989
257924931547549599 ~1990
25792523515850478 ~1989
25792583515851678 ~1989
257931011547586079 ~1990
25793123515862478 ~1989
25793171515863438 ~1989
257935912063487299 ~1990
25793843515876878 ~1989
257938971547633839 ~1990
257945572063564579 ~1990
25795163515903278 ~1989
25795883515917678 ~1989
25796003515920078 ~1989
25796759515935198 ~1989
25796999515939998 ~1989
Exponent Prime Factor Digits Year
25797599515951998 ~1989
257978171547869039 ~1990
25797911515958238 ~1989
25798403515968078 ~1989
25798739515974798 ~1989
25799051515981038 ~1989
25799363515987278 ~1989
25799759515995198 ~1989
25800023516000478 ~1989
25800083516001678 ~1989
25800311516006238 ~1989
25800839516016798 ~1989
25800851516017038 ~1989
25801199516023998 ~1989
25801799516035998 ~1989
25801859516037198 ~1989
25802219516044398 ~1989
25802519516050398 ~1989
25802531516050638 ~1989
25802831516056638 ~1989
25803131516062638 ~1989
25803143516062878 ~1989
25803551516071038 ~1989
25803623516072478 ~1989
258038714644696799 ~1991
Exponent Prime Factor Digits Year
25803983516079678 ~1989
25804199516083998 ~1989
25804391516087838 ~1989
25804763516095278 ~1989
25805579516111598 ~1989
258056693612793679 ~1991
25805963516119278 ~1989
25806359516127198 ~1989
25806551516131038 ~1989
25806829242584192710 ~1993
25807031516140638 ~1989
25807499516149998 ~1989
25807571516151438 ~1989
25808171516163438 ~1989
25808291516165838 ~1989
25808339516166798 ~1989
25808423516168478 ~1989
25808543516170878 ~1989
25808831516176638 ~1989
25809083516181678 ~1989
25809253103237012110 ~1992
25809263516185278 ~1989
25809299516185998 ~1989
25809359516187198 ~1989
25809851516197038 ~1989
1598
GIMPS The Prime Pages FactorDb.com
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25-04-13