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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
39459558793945955879111 ~2008
3945979343789195868710 ~2006
3946357631789271526310 ~2006
39466678012368000680711 ~2007
3946946231789389246310 ~2006
394695728310262088935912 ~2009
3947064791789412958310 ~2006
3947067023789413404710 ~2006
3947124143789424828710 ~2006
3947169371789433874310 ~2006
3947311079789462215910 ~2006
394752716312632086921712 ~2009
394757068915790282756112 ~2009
3947956403789591280710 ~2006
394823257321320455894312 ~2009
3948603623789720724710 ~2006
3948614963789722992710 ~2006
39486630713158930456911 ~2007
39486710332369202619911 ~2007
3948797579789759515910 ~2006
39490615613159249248911 ~2007
3949188263789837652710 ~2006
39492546775528956547911 ~2008
39493334813159466784911 ~2007
39494489532369669371911 ~2007
Exponent Prime Factor Digits Year
3949484783789896956710 ~2006
3949860731789972146310 ~2006
39499494073949949407111 ~2008
3950104271790020854310 ~2006
3950109659790021931910 ~2006
39501746532370104791911 ~2007
3950229383790045876710 ~2006
3950384279790076855910 ~2006
3950388551790077710310 ~2006
39504119572370247174311 ~2007
3950469923790093984710 ~2006
39507216372370432982311 ~2007
3950805263790161052710 ~2006
3950857439790171487910 ~2006
3951069719790213943910 ~2006
3951081899790216379910 ~2006
3951164111790232822310 ~2006
3951520619790304123910 ~2006
3951549191790309838310 ~2006
39515541076322486571311 ~2008
39517285633951728563111 ~2008
39518164397113269590311 ~2008
395193013137938529257712 ~2010
39520600193161648015311 ~2007
39520636932371238215911 ~2007
Exponent Prime Factor Digits Year
3952093811790418762310 ~2006
395220773916599272503912 ~2009
3952361279790472255910 ~2006
3952380011790476002310 ~2006
3952419623790483924710 ~2006
39525120772371507246311 ~2007
39525676932371540615911 ~2007
3952568759790513751910 ~2006
3952624943790524988710 ~2006
3952633199790526639910 ~2006
3952667819790533563910 ~2006
3952864043790572808710 ~2006
39531231132371873867911 ~2007
39531883633953188363111 ~2008
3953336363790667272710 ~2006
3953361719790672343910 ~2006
39533718172372023090311 ~2007
3953744771790748954310 ~2006
39539975393163198031311 ~2007
39541516098699133539911 ~2009
3954285311790857062310 ~2006
39545575879490938208911 ~2009
3954599651790919930310 ~2006
3954778571790955714310 ~2006
395498974112655967171312 ~2009
Exponent Prime Factor Digits Year
39550374913955037491111 ~2008
39550902113164072168911 ~2007
39550975332373058519911 ~2007
3955121279791024255910 ~2006
3955150379791030075910 ~2006
39553939972373236398311 ~2007
3955457003791091400710 ~2006
39554663532373279811911 ~2007
3955656359791131271910 ~2006
39556895412373413724711 ~2007
3955864859791172971910 ~2006
39559690012373581400711 ~2007
3956095919791219183910 ~2006
39561589812373695388711 ~2007
3956167931791233586310 ~2006
3956230139791246027910 ~2006
3956313479791262695910 ~2006
39563322172373799330311 ~2007
39564475979495474232911 ~2009
3956515943791303188710 ~2006
39565691599495765981711 ~2009
39566151372373969082311 ~2007
3956624363791324872710 ~2006
3956999471791399894310 ~2006
39571326673957132667111 ~2008
4443
GIMPS The Prime Pages FactorDb.com
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26-03-08