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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
63853260111277065202311 ~2008
63857636511277152730311 ~2008
63858409075108672725711 ~2009
63860564991277211299911 ~2008
63862705911277254118311 ~2008
63862903431277258068711 ~2008
638646481126823152206312 ~2011
63865390911277307818311 ~2008
63867708111277354162311 ~2008
63868712031277374240711 ~2008
63869182431277383648711 ~2008
63869920431277398408711 ~2008
63870863511277417270311 ~2008
638736478371538485569712 ~2012
63874135791277482715911 ~2008
63878800613832728036711 ~2009
63881758791277635175911 ~2008
63883331631277666632711 ~2008
638864039915332736957712 ~2010
63888109311277762186311 ~2008
63888180413833290824711 ~2009
63891599511277831990311 ~2008
63895081791277901635911 ~2008
63895950711277919014311 ~2008
63895960431277919208711 ~2008
Exponent Prime Factor Dig. Year
63901036498946145108711 ~2010
63903590391278071807911 ~2008
639060034310224960548912 ~2010
63908323911278166478311 ~2008
639094867315338276815312 ~2010
63909542991278190859911 ~2008
639117886711504121960712 ~2010
63912341631278246832711 ~2008
63913906791278278135911 ~2008
639147739911504659318312 ~2010
63915718431278314368711 ~2008
63916972431278339448711 ~2008
63919457511278389150311 ~2008
63920826115113666088911 ~2009
63926415111278528302311 ~2008
63926789395114143151311 ~2009
63931217391278624347911 ~2008
63933679791278673595911 ~2008
63937788831278755776711 ~2008
63938724231278774484711 ~2008
63939342591278786851911 ~2008
63940959231278819184711 ~2008
63942665031278853300711 ~2008
63943102311278862046311 ~2008
63944479311278889586311 ~2008
Exponent Prime Factor Dig. Year
63945040431278900808711 ~2008
639455680165224479370312 ~2012
639463622315347126935312 ~2010
63946413298952497860711 ~2010
63947802111278956042311 ~2008
63948431213836905872711 ~2009
63949561431278991228711 ~2008
63955630431279112608711 ~2008
63956530876395653087111 ~2009
63957196791279143935911 ~2008
63962675391279253507911 ~2008
63964384911279287698311 ~2008
63966060711279321214311 ~2008
63970393311279407866311 ~2008
63970815711279416314311 ~2008
63973818831279476376711 ~2008
63979740415118379232911 ~2009
63980928013838855680711 ~2009
63983950791279679015911 ~2008
63984754933839085295911 ~2009
63984818333839089099911 ~2009
63985214391279704287911 ~2008
63988723911279774478311 ~2008
63990558231279811164711 ~2008
63993921591279878431911 ~2008
Exponent Prime Factor Dig. Year
63997591431279951828711 ~2008
63998514591279970291911 ~2008
640031396315360753511312 ~2010
64004187436400418743111 ~2009
64005100375120408029711 ~2009
64008755991280175119911 ~2008
64010371791280207435911 ~2008
640223911116645821688712 ~2010
64025616111280512322311 ~2008
64031553591280631071911 ~2008
64035351111280707022311 ~2008
64037622013842257320711 ~2009
64038168231280763364711 ~2008
64039821711280796434311 ~2008
64040161911280803238311 ~2008
64040711995123256959311 ~2009
64042464831280849296711 ~2008
64045543911280910878311 ~2008
640458375152517586758312 ~2012
64047176391280943527911 ~2008
64052747511281054950311 ~2008
64059609711281192194311 ~2008
64061523231281230464711 ~2008
64062379191281247583911 ~2008
64067377311281347546311 ~2008
4146
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25-05-04