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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 Dig. Year
51201983511024039670311 ~2007
51204126111024082522311 ~2007
51204534231024090684711 ~2007
512052001712289248040912 ~2009
51207159231024143184711 ~2007
51209825631024196512711 ~2007
51209923973072595438311 ~2008
51210237294096818983311 ~2008
51210552297169477320711 ~2009
51211679933072700795911 ~2008
51211818231024236364711 ~2007
51214387791024287755911 ~2007
51215571591024311431911 ~2007
51217167533073030051911 ~2008
51218070591024361411911 ~2007
51221543511024430870311 ~2007
51224760599220456906311 ~2009
51225949311024518986311 ~2007
51226992711024539854311 ~2007
512272520312294540487312 ~2009
51229401711024588034311 ~2007
51231170991024623419911 ~2007
51232184178197149467311 ~2009
51233311791024666235911 ~2007
51239147031024782940711 ~2007
Exponent Prime Factor Dig. Year
512411737146117056339112 ~2011
51241498733074489923911 ~2008
51242394413074543664711 ~2008
51242681475124268147111 ~2009
51246883133074812987911 ~2008
51247915431024958308711 ~2007
51252514311025050286311 ~2007
51254517591025090351911 ~2007
51255139791025102795911 ~2007
51256825431025136508711 ~2007
51257354511025147090311 ~2007
51263465391025269307911 ~2007
51263665791025273315911 ~2007
51264286791025285735911 ~2007
51265792311025315846311 ~2007
51268396911025367938311 ~2007
51268653795126865379111 ~2009
51269647431025392948711 ~2007
51270651231025413024711 ~2007
512717579912305221917712 ~2009
51272044191025440883911 ~2007
51274552191025491043911 ~2007
51275026573076501594311 ~2008
51275753394102060271311 ~2008
51275943773076556626311 ~2008
Exponent Prime Factor Dig. Year
51277790533076667431911 ~2008
51278359911025567198311 ~2007
51281021631025620432711 ~2007
512811109136922399855312 ~2011
51281827973076909678311 ~2008
51282189831025643796711 ~2007
512828784135898014887112 ~2011
51284992311025699846311 ~2007
51285298311025705966311 ~2007
51286870791025737415911 ~2007
51286956231025739124711 ~2007
51288870831025777416711 ~2007
51290120511025802410311 ~2007
51290895711025817914311 ~2007
51290905791025818115911 ~2007
51291105231025822104711 ~2007
512934073929750176286312 ~2010
51294658973077679538311 ~2008
51295215831025904316711 ~2007
51297193813077831628711 ~2008
512982271715389468151112 ~2010
51299037111025980742311 ~2007
51300455511026009110311 ~2007
51300850973078051058311 ~2008
51301190031026023800711 ~2007
Exponent Prime Factor Dig. Year
51301871511026037430311 ~2007
51305724111026114482311 ~2007
513062367723600868914312 ~2010
51307840311026156806311 ~2007
51308329911026166598311 ~2007
51309346311026186926311 ~2007
51311853591026237071911 ~2007
51312875413078772524711 ~2008
51319701719237546307911 ~2009
513199596140029568495912 ~2011
51320134431026402688711 ~2007
51324020694105921655311 ~2008
51328572591026571451911 ~2007
51331316031026626320711 ~2007
51332467911026649358311 ~2007
51335443191026708863911 ~2007
51335860431026717208711 ~2007
51337532631026750652711 ~2007
51342019311026840386311 ~2007
51346081191026921623911 ~2007
51347501574107800125711 ~2008
51350464733081027883911 ~2008
51350497791027009955911 ~2007
513516019315405480579112 ~2010
51352226391027044527911 ~2007
4172
GIMPS The Prime Pages FactorDb.com
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25-07-08