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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
28236731564734638 ~1989
28236899564737998 ~1989
28237463564749278 ~1989
282379272823792719 ~1991
28238183564763678 ~1989
282382334518117299 ~1991
28238279564765598 ~1989
28238291564765838 ~1989
282385971694315839 ~1990
28238999564779998 ~1989
28240571564811438 ~1989
28240703564814078 ~1989
28240739564814798 ~1989
282414312824143119 ~1991
282414315083457599
282418312259346499 ~1991
28242059564841198 ~1989
28242299564845998 ~1989
282426011694556079 ~1990
282426536778236739 ~1992
28243283564865678 ~1989
28243679564873598 ~1989
282437232824372319 ~1991
282439733954156239 ~1991
282440331694641999 ~1990
Exponent Prime Factor Digits Year
28244423564888478 ~1989
282446812259574499 ~1991
28245179564903598 ~1989
28245251564905038 ~1989
28245323564906478 ~1989
282453411694720479 ~1990
28245779564915598 ~1989
28246199564923998 ~1989
282464811694788879 ~1990
28247111564942238 ~1989
282475011694850079 ~1990
28247759564955198 ~1989
28247917474565005710 ~1994
28248179564963598 ~1989
282481792259854339
28248683564973678 ~1989
282487931694927599 ~1990
28249031564980638 ~1989
28249379564987598 ~1989
28250171565003438 ~1989
28250303565006078 ~1989
282505972260047779 ~1991
28252151565043038 ~1989
28252379565047598 ~1989
28252883565057678 ~1989
Exponent Prime Factor Digits Year
28252979565059598 ~1989
28253471565069438 ~1989
28253759565075198 ~1989
28254179565083598 ~1989
28254623565092478 ~1989
28254659565093198 ~1989
28255163565103278 ~1989
28255499565109998 ~1989
282557572260460579 ~1991
282562515086125199 ~1992
28256471565129438 ~1989
28256843565136878 ~1989
28256951565139038 ~1989
282573712260589699 ~1991
282577811695466879 ~1990
28258511565170238 ~1989
28258991565179838 ~1989
28259459565189198 ~1989
28259579565191598 ~1989
282601795086832239 ~1992
28260899565217998 ~1989
28261991565239838 ~1989
28262603565252078 ~1989
28262639565252798 ~1989
28262771565255438 ~1989
Exponent Prime Factor Digits Year
282630432826304319 ~1991
28263551565271038 ~1989
282640211695841279 ~1990
28264403565288078 ~1989
28264679565293598 ~1989
282646971695881839 ~1990
28264811565296238 ~1989
282657011695942079 ~1990
282657236783773539 ~1992
28265843565316878 ~1989
28265903565318078 ~1989
28266191565323838 ~1989
28266863565337278 ~1989
282673632826736319 ~1991
28267451565349038 ~1989
28268879565377598 ~1989
282688931696133599 ~1990
28268963565379278 ~1989
282689832826898319 ~1991
282690292261522339 ~1991
28269119565382398 ~1989
28269491565389838 ~1989
28269803565396078 ~1989
28270163565403278 ~1989
28270559565411198 ~1989
1696
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25-07-08