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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
299204692393637539 ~1991
29920823598416478 ~1989
29921063598421278 ~1989
299211892393695139 ~1991
29921519598430398 ~1989
299215274787444339 ~1992
29922071598441438 ~1989
29922143598442878 ~1989
299222392393779139 ~1991
29922671598453438 ~1989
299228771795372639 ~1991
29923319598466398 ~1989
29923511598470238 ~1989
29923919598478398 ~1989
29924039598480798 ~1989
29924399598487998 ~1989
29925191598503838 ~1989
29925743598514878 ~1989
29926499598529998 ~1989
299265734788251699 ~1992
29926619598532398 ~1989
29927363598547278 ~1989
29928131598562638 ~1989
29928443598568878 ~1989
29928659125700367910 ~1993
Exponent Prime Factor Digits Year
299287192394297539 ~1991
29928803598576078 ~1989
29928851598577038 ~1989
29929331598586638 ~1989
29930653520793362310 ~1994
299316412394531299 ~1991
299317392993173919 ~1991
29931743598634878 ~1989
29932139598642798 ~1989
29932319598646398 ~1989
29932403598648078 ~1989
29932943598658878 ~1989
29933171598663438 ~1989
29933339598666798 ~1989
29933639598672798 ~1989
29933699598673998 ~1989
299338018980140319 ~1992
29934563598691278 ~1989
29934659598693198 ~1989
29935151598703038 ~1989
29935463598709278 ~1989
299358131796148799 ~1991
29936171598723438 ~1989
29936183598723678 ~1989
299367192993671919 ~1991
Exponent Prime Factor Digits Year
29936843598736878 ~1989
29937371598747438 ~1989
299380312395042499 ~1991
29938523598770478 ~1989
299388771796332639 ~1991
29939219598784398 ~1989
29939543598790878 ~1989
29940539598810798 ~1989
299405771796434639 ~1991
299408094191713279 ~1991
29941211598824238 ~1989
29941259598825198 ~1989
29941451598829038 ~1989
29942051598841038 ~1989
29942351598847038 ~1989
299425672395405379 ~1991
29943191598863838 ~1989
29943311598866238 ~1989
29943779598875598 ~1989
299438897186533379 ~1992
29944163598883278 ~1989
29944751598895038 ~1989
299452971796717839 ~1991
29945999598919998 ~1989
29946599598931998 ~1989
Exponent Prime Factor Digits Year
29946743598934878 ~1989
29947103598942078 ~1989
299471092395768739 ~1991
29947139598942798 ~1989
29947223598944478 ~1989
29947331598946638 ~1989
299477872395822979 ~1991
29947979598959598 ~1989
29948291598965838 ~1989
29948519598970398 ~1989
29948591598971838 ~1989
29948879598977598 ~1989
29949119598982398 ~1989
299492531796955199 ~1991
299498272395986179 ~1991
29950103599002078 ~1989
29950331599006638 ~1989
29950499599009998 ~1989
299506372396050979 ~1991
29950751599015038 ~1989
29951063599021278 ~1989
299511472396091779 ~1991
29951219599024398 ~1989
29951231599024638 ~1989
29952743599054878 ~1989
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25-04-13