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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
4381501031876300206310 ~2006
4381634039876326807910 ~2006
43819577812629174668711 ~2007
4381964399876392879910 ~2006
4382021543876404308710 ~2006
4382228183876445636710 ~2006
4382330891876466178310 ~2006
43825193336135527066311 ~2008
43825421412629525284711 ~2007
4382608403876521680710 ~2006
4382637923876527584710 ~2006
4382643059876528611910 ~2006
438266944934184821702312 ~2010
43826759812629605588711 ~2007
43827570893506205671311 ~2008
4382781083876556216710 ~2006
43829500372629770022311 ~2007
43831129613506490368911 ~2008
4383291443876658288710 ~2006
4383374951876674990310 ~2006
438353459921040966075312 ~2010
43836520994383652099111 ~2008
4383898643876779728710 ~2006
4384039799876807959910 ~2006
43844926037015188164911 ~2009
Exponent Prime Factor Digits Year
438457829324553638440912 ~2010
4384609199876921839910 ~2006
4384998791876999758310 ~2006
43850851394385085139111 ~2008
4385204423877040884710 ~2006
43852692612631161556711 ~2007
43852776412631166584711 ~2007
43852906913508232552911 ~2008
4385328719877065743910 ~2006
43854349793508347983311 ~2008
4385439983877087996710 ~2006
4385604623877120924710 ~2006
43856429572631385774311 ~2007
438564913910525557933712 ~2009
43856607914385660791111 ~2008
43857454372631447262311 ~2007
4385852459877170491910 ~2006
43858782612631526956711 ~2007
4386142499877228499910 ~2006
4386262631877252526310 ~2006
4386352031877270406310 ~2006
4386352871877270574310 ~2006
43863749873509099989711 ~2008
43864296372631857782311 ~2007
4386442451877288490310 ~2006
Exponent Prime Factor Digits Year
43865482732631928963911 ~2007
43865823772631949426311 ~2007
4386643571877328714310 ~2006
4386869423877373884710 ~2006
4387219943877443988710 ~2006
4387310831877462166310 ~2006
43875328372632519702311 ~2007
43876088813510087104911 ~2008
4387622051877524410310 ~2006
4387949831877589966310 ~2006
4387952099877590419910 ~2006
4388073659877614731910 ~2006
4388157803877631560710 ~2006
4388223971877644794310 ~2006
4388583299877716659910 ~2006
4388735579877747115910 ~2006
4388787839877757567910 ~2006
4389025331877805066310 ~2006
4389093671877818734310 ~2006
4389222839877844567910 ~2006
4389247463877849492710 ~2006
4389265103877853020710 ~2006
4389584723877916944710 ~2006
4389756743877951348710 ~2006
438989854910535756517712 ~2009
Exponent Prime Factor Digits Year
4389935471877987094310 ~2006
438994097910535858349712 ~2009
4390147211878029442310 ~2006
4390287959878057591910 ~2006
4390377683878075536710 ~2006
439042356117561694244112 ~2009
4390722299878144459910 ~2006
43907790317025246449711 ~2009
43911468612634688116711 ~2007
43912538093513003047311 ~2008
4391258351878251670310 ~2006
4391299499878259899910 ~2006
4391309291878261858310 ~2006
4391322779878264555910 ~2006
43913316473513065317711 ~2008
4392071819878414363910 ~2006
4392448031878489606310 ~2006
4392486023878497204710 ~2006
4392486179878497235910 ~2006
4392504071878500814310 ~2006
439263586710542326080912 ~2009
4392955043878591008710 ~2006
43929608573514368685711 ~2008
43931787372635907242311 ~2007
4393284911878656982310 ~2006
4027
GIMPS The Prime Pages FactorDb.com
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25-05-04