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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
185120511480964099 ~1989
18512111370242238 ~1988
18512519370250398 ~1988
185127131110762799 ~1989
18512891370257838 ~1988
18513623370272478 ~1988
18513983370279678 ~1988
185142011110852079 ~1989
18514823370296478 ~1988
185154171110925039 ~1989
18515459370309198 ~1988
185157972962527539 ~1990
185158132592213839 ~1990
18515831370316638 ~1988
18516131370322638 ~1988
18516479370329598 ~1988
18516623370332478 ~1988
18517151370343038 ~1988
18517211370344238 ~1988
18517379370347598 ~1988
18517451370349038 ~1988
18517883370357678 ~1988
18518099370361998 ~1988
18518459370369198 ~1988
185188131111128799 ~1989
Exponent Prime Factor Digits Year
185188211111129279 ~1989
18519251370385038 ~1988
18519311370386238 ~1988
18519323370386478 ~1988
185200971481607779 ~1989
18520343370406878 ~1988
185207931111247599 ~1989
18521579370431598 ~1988
18522011370440238 ~1988
185221731111330399 ~1989
18522191370443838 ~1988
18522431370448638 ~1988
185224331111345999 ~1989
185226411111358479 ~1989
18523031370460638 ~1988
18523343370466878 ~1988
18523391370467838 ~1988
185235731111414399 ~1989
18524459370489198 ~1988
185245931111475599 ~1989
185246171111477039 ~1989
18524843370496878 ~1988
18525179370503598 ~1988
18525239370504798 ~1988
18525599370511998 ~1988
Exponent Prime Factor Digits Year
18525719370514398 ~1988
18526559370531198 ~1988
185268772593762799 ~1990
185270811111624879 ~1989
18527123370542478 ~1988
18527303370546078 ~1988
18527471370549438 ~1988
18527759370555198 ~1988
18527963370559278 ~1988
185282811111696879 ~1989
185283531111701199 ~1989
18528431370568638 ~1988
18528683370573678 ~1988
18528899370577998 ~1988
185290611111743679 ~1989
18529163370583278 ~1988
18529223370584478 ~1988
18529523370590478 ~1988
18529799370595998 ~1988
185305731111834399 ~1989
18530819370616398 ~1988
185308611111851679 ~1989
18531067107480188710 ~1991
18531911370638238 ~1988
185320673335772079 ~1990
Exponent Prime Factor Digits Year
18532259370645198 ~1988
18532331370646638 ~1988
18532463370649278 ~1988
185327393335893039 ~1990
185332611482660899 ~1989
18534359370687198 ~1988
18534563370691278 ~1988
18535043370700878 ~1988
18535199370703998 ~1988
185360571482884579 ~1989
18536351370727038 ~1988
18536363370727278 ~1988
185367673336618079 ~1990
185370678897792179 ~1991
185370971112225839 ~1989
185373972965983539 ~1990
18537983370759678 ~1988
18538199370763998 ~1988
185382411483059299 ~1989
18538463370769278 ~1988
185387572595425999 ~1990
18539099370781998 ~1988
18539123370782478 ~1988
18539879370797598 ~1988
185401911483215299 ~1989
1418
GIMPS The Prime Pages FactorDb.com
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25-11-17