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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
8508373510502398 ~1986
8508757510525438 ~1986
8509079170181598 ~1985
8509121680729698 ~1987
8509147850914718 ~1987
8509211170184238 ~1985
8509247680739778 ~1987
8509331170186638 ~1985
85094331191320639 ~1987
8509601510576078 ~1986
8509619170192398 ~1985
85096612552898319 ~1988
8509799170195998 ~1985
8509861510591678 ~1986
8510039170200798 ~1985
8510441680835298 ~1987
8511001510660078 ~1986
8511131170222638 ~1985
8511367136181872110 ~1990
8511491170229838 ~1985
8511497680919778 ~1987
8511617510697038 ~1986
8511619851161918 ~1987
8511731170234638 ~1985
8511803170236078 ~1985
Exp. Prime Factor Digits Year
8511821510709278 ~1986
8511913510714798 ~1986
85121111361937779 ~1987
85123511361976179 ~1987
8512391170247838 ~1985
85123911532230399
8512453510747198 ~1986
85124539533947379
8512547681003778 ~1987
8512643170252878 ~1985
8512799170255998 ~1985
85128834767214499 ~1989
8513033510781998 ~1986
8513171170263438 ~1985
85132071532377279 ~1987
8513291681063298 ~1987
8513341510800478 ~1986
8513497510809838 ~1986
8514173510850398 ~1986
8514179170283598 ~1985
85142774086852979 ~1989
8514419681153538 ~1987
8514509681160738 ~1987
8514743170294878 ~1985
85149491873288799 ~1988
Exp. Prime Factor Digits Year
8515141510908478 ~1986
85153072213979839 ~1988
8515379170307598 ~1985
8515391681231298 ~1987
8515853510951198 ~1986
8515931170318638 ~1985
8516159170323198 ~1985
8516197510971838 ~1986
8516489681319138 ~1987
8516639170332798 ~1985
8516797511007838 ~1986
85169272214401039 ~1988
8517023170340478 ~1985
8517253511035198 ~1986
8517401511044078 ~1986
8517419170348398 ~1985
8517563170351278 ~1985
85176612555298319 ~1988
8517779170355598 ~1985
8517863170357278 ~1985
85178931192505039 ~1987
8518507851850718 ~1987
8518883170377678 ~1985
8518931170378638 ~1985
8518931681514498
Exp. Prime Factor Digits Year
8519051170381038 ~1985
8519221511153278 ~1986
8519257511155438 ~1986
8519279170385598 ~1985
8519411170388238 ~1985
8519963170399278 ~1985
8520023170400478 ~1985
8520427852042718 ~1987
8520431681634498 ~1987
85206791533722239 ~1987
8521703170434078 ~1985
8522147681771778 ~1987
8522537511352238 ~1986
8522639170452798 ~1985
8522671852267118 ~1987
8522707852270718 ~1987
8522939170458798 ~1985
8522999170459998 ~1985
85231272045550499 ~1988
85233294091197939 ~1989
8523611170472238 ~1985
8523637511418238 ~1986
8523881681910498 ~1987
8523917511435038 ~1986
85245073409802819 ~1988
965
GIMPS The Prime Pages FactorDb.com
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26-02-08