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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
3985246619797049323910 ~2006
3985327583797065516710 ~2006
3985405223797081044710 ~2006
3985417811797083562310 ~2006
3985444679797088935910 ~2006
3985729703797145940710 ~2006
3986038631797207726310 ~2006
39862265536377962484911 ~2008
3986334419797266883910 ~2006
39863535732391812143911 ~2007
3986698139797339627910 ~2006
39869548972392172938311 ~2007
3987056999797411399910 ~2006
3987147023797429404710 ~2006
39871777372392306642311 ~2007
3987236063797447212710 ~2006
3987788963797557792710 ~2006
3988041251797608250310 ~2006
3988160219797632043910 ~2006
39881838412392910304711 ~2007
398822100111964663003112 ~2009
3988349723797669944710 ~2006
398840047311965201419112 ~2009
39884391713190751336911 ~2007
3988502879797700575910 ~2006
Exponent Prime Factor Digits Year
39885761695584006636711 ~2008
39888539935584395590311 ~2008
3988900871797780174310 ~2006
3989013683797802736710 ~2006
3989137931797827586310 ~2006
39893880413191510432911 ~2007
3989560103797912020710 ~2006
39900101335586014186311 ~2008
3990041351798008270310 ~2006
3990080603798016120710 ~2006
39902329732394139783911 ~2007
39906296532394377791911 ~2007
3990671651798134330310 ~2006
3990699623798139924710 ~2006
3990706679798141335910 ~2006
39908022612394481356711 ~2007
3990916019798183203910 ~2006
3991083683798216736710 ~2006
3991138559798227711910 ~2006
3991181063798236212710 ~2006
39913120972394787258311 ~2007
3991344083798268816710 ~2006
3991537631798307526310 ~2006
3991558559798311711910 ~2006
39915707639579769831311 ~2009
Exponent Prime Factor Digits Year
3991606259798321251910 ~2006
3991930583798386116710 ~2006
39919428117185497059911 ~2008
3991958783798391756710 ~2006
3992250491798450098310 ~2006
39925151393194012111311 ~2007
3992542283798508456710 ~2006
3992553959798510791910 ~2006
39926873812395612428711 ~2007
39927801532395668091911 ~2007
3992892803798578560710 ~2006
3992945903798589180710 ~2006
3993009539798601907910 ~2006
3993116591798623318310 ~2006
39933163913194653112911 ~2007
39934383532396063011911 ~2007
39934662293194772983311 ~2007
3994048631798809726310 ~2006
3994385159798877031910 ~2006
399454461154325806709712 ~2010
3994642703798928540710 ~2006
3994739219798947843910 ~2006
3994848191798969638310 ~2006
3994869383798973876710 ~2006
3995047151799009430310 ~2006
Exponent Prime Factor Digits Year
3995158463799031692710 ~2006
3995276231799055246310 ~2006
3995354003799070800710 ~2006
3995389571799077914310 ~2006
3995490923799098184710 ~2006
39955376572397322594311 ~2007
3995697383799139476710 ~2006
3995763539799152707910 ~2006
39958307473995830747111 ~2008
3995887751799177550310 ~2006
3996035063799207012710 ~2006
3996039119799207823910 ~2006
3996519743799303948710 ~2006
3996782351799356470310 ~2006
3996872063799374412710 ~2006
39968863932398131835911 ~2007
39969250073197540005711 ~2007
3997057523799411504710 ~2006
3997453979799490795910 ~2006
3998227151799645430310 ~2006
3998456543799691308710 ~2006
3998486039799697207910 ~2006
3998893319799778663910 ~2006
3998896283799779256710 ~2006
39989140132399348407911 ~2007
3965
GIMPS The Prime Pages FactorDb.com
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25-04-13