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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
21610091432201838 ~1988
21610643432212878 ~1988
21610691432213838 ~1988
216109131296654799 ~1989
21610931432218638 ~1988
216114616483438319 ~1991
21611519432230398 ~1988
21611543432230878 ~1988
216127071729016579 ~1990
21612911432258238 ~1988
21613139432262798 ~1988
216131534754893679 ~1991
21613199432263998 ~1988
216147371296884239 ~1989
21616079432321598 ~1988
21616559432331198 ~1988
21617111432342238 ~1988
216179693026515679 ~1990
21618059432361198 ~1988
21618739138359929710 ~1992
21618983432379678 ~1988
216194472161944719 ~1990
216198171297189039 ~1989
21619883432397678 ~1988
21619943432398878 ~1988
Exponent Prime Factor Digits Year
21620279432405598 ~1988
21620411432408238 ~1988
216206592162065919 ~1990
21620843432416878 ~1988
21621371432427438 ~1988
21621683432433678 ~1988
21621923432438478 ~1988
216228014757016239 ~1991
21623471432469438 ~1988
21623663432473278 ~1988
21623939432478798 ~1988
21623963432479278 ~1988
216241571297449439 ~1989
21624203432484078 ~1988
21624359432487198 ~1988
21624803432496078 ~1988
216249373459989939 ~1990
216249471729995779 ~1990
216249733459995699 ~1990
216250311730002499 ~1990
21625199432503998 ~1988
216253334757573279 ~1991
21625679432513598 ~1988
21626051432521038 ~1988
21626219432524398 ~1988
Exponent Prime Factor Digits Year
21626399432527998 ~1988
21626459432529198 ~1988
21628283432565678 ~1988
21629123432582478 ~1988
216293931297763599 ~1989
21629819432596398 ~1988
21630359432607198 ~1988
21630659432613198 ~1988
216311211730489699 ~1990
21631283432625678 ~1988
21631619432632398 ~1988
21633011432660238 ~1988
21633539432670798 ~1988
21633791432675838 ~1988
21633803432676078 ~1988
21634451432689038 ~1988
21634631432692638 ~1988
21634799432695998 ~1988
21635051432701038 ~1988
21635323294240392910 ~1993
21636143432722878 ~1988
21636683432733678 ~1988
21636743432734878 ~1988
216368095192834179 ~1991
21637151432743038 ~1988
Exponent Prime Factor Digits Year
21637391432747838 ~1988
216380411298282479 ~1989
216381171298287039 ~1989
21638231432764638 ~1988
216385311731082499 ~1990
21638579432771598 ~1988
21638819432776398 ~1988
216389931298339599 ~1989
21639731432794638 ~1988
216401275193630499 ~1991
216404771298428639 ~1989
21640691432813838 ~1988
21640919432818398 ~1988
216409373029731199 ~1990
21641099432821998 ~1988
21641303432826078 ~1988
21641783432835678 ~1988
21641843432836878 ~1988
21642143432842878 ~1988
216421913895594399 ~1991
21642503432850078 ~1988
216425871731406979 ~1990
21643691432873838 ~1988
21643883432877678 ~1988
21644039432880798 ~1988
1491
GIMPS The Prime Pages FactorDb.com
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25-07-08