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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
3972449231794489846310 ~2006
39726915532383614931911 ~2007
39728325173178266013711 ~2007
397288633148469213238312 ~2010
3972939611794587922310 ~2006
39731078713973107871111 ~2008
3973160591794632118310 ~2006
3973165103794633020710 ~2006
397317982326222986831912 ~2010
3973276379794655275910 ~2006
3973600331794720066310 ~2006
3974009423794801884710 ~2006
3974107523794821504710 ~2006
3974260931794852186310 ~2006
3974347991794869598310 ~2006
39744420372384665222311 ~2007
39744432293179554583311 ~2007
3974575079794915015910 ~2006
3974640311794928062310 ~2006
3974766011794953202310 ~2006
3974774183794954836710 ~2006
39747847332384870839911 ~2007
3974897291794979458310 ~2006
3974970383794994076710 ~2006
3975069779795013955910 ~2006
Exponent Prime Factor Digits Year
3975205991795041198310 ~2006
3975227411795045482310 ~2006
39753392172385203530311 ~2007
39754568412385274104711 ~2007
3975523031795104606310 ~2006
3975552083795110416710 ~2006
3975660599795132119910 ~2006
3975724871795144974310 ~2006
3975772943795154588710 ~2006
39761139172385668350311 ~2007
39761524132385691447911 ~2007
3976310111795262022310 ~2006
3976707131795341426310 ~2006
3976727543795345508710 ~2006
39767334293181386743311 ~2007
3976773743795354748710 ~2006
3976806503795361300710 ~2006
3976827791795365558310 ~2006
3976911443795382288710 ~2006
3976928003795385600710 ~2006
3977139191795427838310 ~2006
3977577503795515500710 ~2006
3977622023795524404710 ~2006
39776269493182101559311 ~2007
3977879891795575978310 ~2006
Exponent Prime Factor Digits Year
3978239231795647846310 ~2006
3978255383795651076710 ~2006
39783286332386997179911 ~2007
3978623459795724691910 ~2006
397866292122280512357712 ~2010
3978796103795759220710 ~2006
3978865619795773123910 ~2006
3978888863795777772710 ~2006
3979120811795824162310 ~2006
39792971213183437696911 ~2007
39793988873183519109711 ~2007
39796171973183693757711 ~2007
3979698263795939652710 ~2006
3979762019795952403910 ~2006
3979952423795990484710 ~2006
3980003519796000703910 ~2006
3980066423796013284710 ~2006
398008808316716369948712 ~2009
3980232479796046495910 ~2006
3980253611796050722310 ~2006
39803590816368574529711 ~2008
3980415311796083062310 ~2006
3980519243796103848710 ~2006
3981062279796212455910 ~2006
3981178139796235627910 ~2006
Exponent Prime Factor Digits Year
3981195059796239011910 ~2006
39813466732388808003911 ~2007
39813826332388829579911 ~2007
3981481859796296371910 ~2006
398188417110352898844712 ~2009
39820222212389213332711 ~2007
3982501199796500239910 ~2006
3982584563796516912710 ~2006
3982647863796529572710 ~2006
3982656731796531346310 ~2006
3982701119796540223910 ~2006
3983157611796631522310 ~2006
3983206823796641364710 ~2006
3983581643796716328710 ~2006
3983712959796742591910 ~2006
3984058751796811750310 ~2006
39842685732390561143911 ~2007
3984335783796867156710 ~2006
3984492731796898546310 ~2006
398461561913547693104712 ~2009
39846609132390796547911 ~2007
3984835331796967066310 ~2006
39848832773187906621711 ~2007
3984997799796999559910 ~2006
3985183199797036639910 ~2006
3964
GIMPS The Prime Pages FactorDb.com
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25-04-13