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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
232391571394349439 ~1990
23239259464785198 ~1989
232392771394356639 ~1990
232393399760522399 ~1992
232394811394368879 ~1990
23239511464790238 ~1989
23239627278875524110 ~1993
232402571394415439 ~1990
23240291464805838 ~1989
232402911859223299
23240831464816638 ~1989
232411571394469439 ~1990
23241551464831038 ~1989
23242679464853598 ~1989
23243243464864878 ~1989
232432931394597599 ~1990
23243303464866078 ~1989
23243999464879998 ~1989
23244059464881198 ~1989
23244323464886478 ~1989
23244803464896078 ~1989
232453011394718079 ~1990
23245553292893967910 ~1993
23245679464913598 ~1989
232458891859671139 ~1990
Exponent Prime Factor Digits Year
23245991464919838 ~1989
23246771464935438 ~1989
23246963464939278 ~1989
23247011464940238 ~1989
23247071464941438 ~1989
23247671464953438 ~1989
23248139464962798 ~1989
23248223464964478 ~1989
23248391464967838 ~1989
23248451464969038 ~1989
23248499464969998 ~1989
232484991859879939
23248859464977198 ~1989
23249399464987998 ~1989
232499832324998319 ~1990
23250743465014878 ~1989
23250863465017278 ~1989
23251499465029998 ~1989
232519331395115999 ~1990
23252231465044638 ~1989
23252597130214543310 ~1992
23252783465055678 ~1989
23253071465061438 ~1989
232531491860251939 ~1990
23253599465071998 ~1989
Exponent Prime Factor Digits Year
23253731465074638 ~1989
23253959465079198 ~1989
232543497441391699 ~1991
232551235581229539 ~1991
23255759465115198 ~1989
23256251465125038 ~1989
23256371465127438 ~1989
23257103465142078 ~1989
232573971860591779 ~1990
23258003465160078 ~1989
23258051465161038 ~1989
232581891860655139 ~1990
23258219465164398 ~1989
23258351465167038 ~1989
23258423130247168910 ~1992
232591911860735299 ~1990
23260043465200878 ~1989
23260091465201838 ~1989
232605471860843779 ~1990
23260823465216478 ~1989
232610472326104719 ~1990
23261963465239278 ~1989
23261999465239998 ~1989
232620531395723199 ~1990
232624976978749119 ~1991
Exponent Prime Factor Digits Year
23263319465266398 ~1989
232635496979064719 ~1991
23265323465306478 ~1989
232656072326560719 ~1990
232656291861250339 ~1990
232668011396008079 ~1990
23267059167522824910 ~1992
232671773257404799 ~1991
232672611396035679 ~1990
232676171396057039 ~1990
23267663465353278 ~1989
23268551465371038 ~1989
232690611396143679 ~1990
232691171396147039 ~1990
232696373257749199 ~1991
23270171465403438 ~1989
232706091861648739 ~1990
23270651465413038 ~1989
23271179465423598 ~1989
23271263465425278 ~1989
23271431465428638 ~1989
23271491465429838 ~1989
23271719465434398 ~1989
23271959465439198 ~1989
232719735585273539 ~1991
1578
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25-11-02