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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
21896637891751731031311 ~2005
2189679623437935924710 ~2004
21897218931313833135911 ~2005
2189803571437960714310 ~2004
21898548371313912902311 ~2005
2189913623437982724710 ~2004
2190027803438005560710 ~2004
2190061259438012251910 ~2004
21901043811314062628711 ~2005
21902316771314139006311 ~2005
21902395098760958036111 ~2007
2190276503438055300710 ~2004
2190326063438065212710 ~2004
2190468443438093688710 ~2004
2190478571438095714310 ~2004
21905508011314330480711 ~2005
2190590639438118127910 ~2004
2190620699438124139910 ~2004
21907558435695965191911 ~2007
2190820451438164090310 ~2004
21908309271752664741711 ~2005
21908989931314539395911 ~2005
2190980531438196106310 ~2004
2191035839438207167910 ~2004
2191039379438207875910 ~2004
Exponent Prime Factor Digits Year
2191040531438208106310 ~2004
21911399411314683964711 ~2005
2191178711438235742310 ~2004
21911930411314715824711 ~2005
2191199051438239810310 ~2004
2191226519438245303910 ~2004
2191245071438249014310 ~2004
2191327511438265502310 ~2004
219139030915339732163112 ~2008
2191460003438292000710 ~2004
21915162111753212968911 ~2005
2191521551438304310310 ~2004
2191522559438304511910 ~2004
2191632323438326464710 ~2004
21916487771314989266311 ~2005
21917096472191709647111 ~2006
21917121291753369703311 ~2005
2191738343438347668710 ~2004
21917812313945206215911 ~2006
2191818911438363782310 ~2004
2191850879438370175910 ~2004
2191854503438370900710 ~2004
2191997963438399592710 ~2004
2192060831438412166310 ~2004
2192071151438414230310 ~2004
Exponent Prime Factor Digits Year
21920883593945759046311 ~2006
2192228063438445612710 ~2004
21922555911753804472911 ~2005
21922601712192260171111 ~2006
2192360711438472142310 ~2004
21925258971754020717711 ~2005
2192556479438511295910 ~2004
21925589832192558983111 ~2006
2192593811438518762310 ~2004
2192699891438539978310 ~2004
2192755199438551039910 ~2004
2192846291438569258310 ~2004
2192881811438576362310 ~2004
2192885459438577091910 ~2004
2192994899438598979910 ~2004
2193103043438620608710 ~2004
2193254411438650882310 ~2004
2193377099438675419910 ~2004
2193423503438684700710 ~2004
2193500339438700067910 ~2004
2193573983438714796710 ~2004
2193812303438762460710 ~2004
21938178591755054287311 ~2005
2193856139438771227910 ~2004
21939632933071548610311 ~2006
Exponent Prime Factor Digits Year
2194004639438800927910 ~2004
21940335595265680541711 ~2007
2194039811438807962310 ~2004
2194051991438810398310 ~2004
21940766571316445994311 ~2005
21941495211755319616911 ~2005
2194221899438844379910 ~2004
2194232003438846400710 ~2004
2194296371438859274310 ~2004
2194303571438860714310 ~2004
2194437491438887498310 ~2004
21944603571316676214311 ~2005
21945203535266848847311 ~2007
21947209071755776725711 ~2005
2194798559438959711910 ~2004
2194829459438965891910 ~2004
2194886339438977267910 ~2004
2194955783438991156710 ~2004
2194962683438992536710 ~2004
21950053611317003216711 ~2005
2195062631439012526310 ~2004
2195103731439020746310 ~2004
219515083332927262495112 ~2009
21951682073951302772711 ~2006
2195180783439036156710 ~2004
4096
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25-12-14