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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
21055631421112638 ~1988
21055679421113598 ~1988
21055763421115278 ~1988
210557993790043839 ~1991
210558134632278879 ~1991
21055871421117438 ~1988
21056039421120798 ~1988
21056543421130878 ~1988
210565491684523939 ~1990
21056927155821259910 ~1992
21057083421141678 ~1988
21057299421145998 ~1988
210574311684594499 ~1990
210574671684597379 ~1990
21057479421149598 ~1988
21057563421151278 ~1988
210579291684634339 ~1990
21058211421164238 ~1988
21058283421165678 ~1988
21058343421166878 ~1988
21058619421172398 ~1988
210589311684714499 ~1990
21059231421184638 ~1988
21059411421188238 ~1988
21059669421193380110 ~1993
Exponent Prime Factor Digits Year
21059939421198798 ~1988
21060359421207198 ~1988
21060731421214638 ~1988
21061451421229038 ~1988
21061471151642591310 ~1992
21061619421232398 ~1988
21061739421234798 ~1988
210620811684966499 ~1990
21062543421250878 ~1988
21062999421259998 ~1988
21063071421261438 ~1988
21063131421262638 ~1988
21063803421276078 ~1988
21064073505537752110 ~1993
210643131263858799 ~1989
21064523421290478 ~1988
210651531263909199 ~1989
21065351421307038 ~1988
210654891685239139 ~1990
21066359421327198 ~1988
21066443421328878 ~1988
210665811685326499 ~1990
210666975056007299 ~1991
21066719421334398 ~1988
210669313370708979 ~1990
Exponent Prime Factor Digits Year
21066959421339198 ~1988
21067043421340878 ~1988
210673496320204719 ~1991
21067391421347838 ~1988
21067619421352398 ~1988
210676392106763919 ~1990
21067883421357678 ~1988
21068039421360798 ~1988
21068951421379038 ~1988
21069131421382638 ~1988
21070739421414798 ~1988
21070823421416478 ~1988
21070859421417198 ~1988
210713211685705699 ~1990
210717171685737379 ~1990
210718011685744099 ~1990
21072251421445038 ~1988
21072431421448638 ~1988
21072659421453198 ~1988
21072671421453438 ~1988
21072731421454638 ~1988
21073103421462078 ~1988
210731271685850179 ~1990
210733632107336319 ~1990
21073379421467598 ~1988
Exponent Prime Factor Digits Year
21074051421481038 ~1988
210740692950369679 ~1990
210741971264451839 ~1989
21074519421490398 ~1988
210748038429921219 ~1991
21075023421500478 ~1988
210750771264504639 ~1989
21075451223399780710 ~1992
21075839421516798 ~1988
210759171686073379 ~1990
21076019421520398 ~1988
21076043421520878 ~1988
210762411264574479 ~1989
210762611264575679 ~1989
21076343421526878 ~1988
21076463421529278 ~1988
21076619421532398 ~1988
21076631421532638 ~1988
21076691421533838 ~1988
21076739421534798 ~1988
21076799421535998 ~1988
21076943421538878 ~1988
210770539695444399 ~1992
21077183421543678 ~1988
21078443421568878 ~1988
1449
GIMPS The Prime Pages FactorDb.com
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25-04-13