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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
475345441285207264710 ~2000
475347113285208267910 ~2000
4753739639507479279 ~1999
4753851599507703199 ~1999
4753960799507921599 ~1999
475396577380317261710 ~2000
475425749380340599310 ~2000
4754481599508963199 ~1999
475452511855814519910 ~2001
4754598119509196239 ~1999
475467449380373959310 ~2000
4754693999509387999 ~1999
4754730839509461679 ~1999
4754911799509823599 ~1999
475506329380405063310 ~2000
4755090599510181199 ~1999
4755247439510494879 ~1999
4755376319510752639 ~1999
4755903719511807439 ~1999
4755990119511980239 ~1999
4756082399512164799 ~1999
475617137285370282310 ~2000
4756300199512600399 ~1999
4756346519512693039 ~1999
4756530239513060479 ~1999
Exponent Prime Factor Digits Year
4756637039513274079 ~1999
4756687799513375599 ~1999
4756761119513522239 ~1999
475685227475685227110 ~2000
4756966919513933839 ~1999
4757000639514001279 ~1999
4757149319514298639 ~1999
475732633285439579910 ~2000
4757547119515094239 ~1999
475771561285462936710 ~2000
4757820312759535779911 ~2002
4757860439515720879 ~1999
4757899439515798879 ~1999
475794161380635328910 ~2000
475800761285480456710 ~2000
4758007799516015599 ~1999
4758077519516155039 ~1999
4758503639517007279 ~1999
475859533285515719910 ~2000
4759037519518075039 ~1999
4759113239518226479 ~1999
475918423475918423110 ~2000
475920859475920859110 ~2000
4759330199518660399 ~1999
4759476119518952239 ~1999
Exponent Prime Factor Digits Year
4759487999518975999 ~1999
475952833285571699910 ~2000
4759673999519347999 ~1999
475995593285597355910 ~2000
4760141519520283039 ~1999
476032057285619234310 ~2000
4760489399520978799 ~1999
476053561285632136710 ~2000
476056201285633720710 ~2000
476082017285649210310 ~2000
476096197285657718310 ~2000
4761115439522230879 ~1999
4761246839522493679 ~1999
4761382319522764639 ~1999
4761428899427629202311 ~2004
4761471839522943679 ~1999
476149907857069832710 ~2001
4761513239523026479 ~1999
47616139328855380415912 ~2005
4761845639523691279 ~1999
4761920639523841279 ~1999
476204359476204359110 ~2000
476228747380982997710 ~2000
4762394519524789039 ~1999
4762402799524805599 ~1999
Exponent Prime Factor Digits Year
4762593239525186479 ~1999
4762887239525774479 ~1999
4763102039526204079 ~1999
476313533285788119910 ~2000
476316733285790039910 ~2000
4763340119526680239 ~1999
47633836310288908640912 ~2004
4763549999527099999 ~1999
476356781285814068710 ~2000
476357207381085765710 ~2000
4763592599527185199 ~1999
4763887919527775839 ~1999
4763917932191402247911 ~2002
4763935319527870639 ~1999
4763996999527993999 ~1999
476413373285848023910 ~2000
4764149471143395872911 ~2001
4764163319528326639 ~1999
4764214799528429599 ~1999
4764281633525568406311 ~2003
4764322331048150912711 ~2001
4764391799528783599 ~1999
4764395399528790799 ~1999
4764903839529807679 ~1999
476497127381197701710 ~2000
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25-11-02