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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
265728771594372639 ~1990
26572943531458878 ~1989
265741131594446799 ~1990
26574563531491278 ~1989
26574851531497038 ~1989
26575079531501598 ~1989
265765971594595839 ~1990
26576723531534478 ~1989
265768331594609999 ~1990
265772832657728319 ~1991
265774131594644799 ~1990
26577503531550078 ~1989
265775474783958479 ~1991
26578091531561838 ~1989
265782192657821919 ~1991
26578631531572638 ~1989
265798272657982719 ~1991
265804392658043919 ~1991
26580623531612478 ~1989
26580839531616798 ~1989
265810971594865839 ~1990
26581283531625678 ~1989
26581391531627838 ~1989
265816577974497119 ~1992
26581739531634798 ~1989
Exponent Prime Factor Digits Year
265817712658177119 ~1991
26581811531636238 ~1989
26582051531641038 ~1989
26582579531651598 ~1989
265833171594999039 ~1990
26583671531673438 ~1989
26583863531677278 ~1989
26584091531681838 ~1989
26585063531701278 ~1989
26586071531721438 ~1989
26586503531730078 ~1989
265866971595201839 ~1990
26586743531734878 ~1989
26586803531736078 ~1989
26586863531737278 ~1989
26587163531743278 ~1989
26587679531753598 ~1989
265877531595265199 ~1990
26588183531763678 ~1989
26588531531770638 ~1989
26588651531773038 ~1989
26589319303118236710 ~1993
26589383531787678 ~1989
26589611531792238 ~1989
26590163531803278 ~1989
Exponent Prime Factor Digits Year
26590379531807598 ~1989
26590523531810478 ~1989
26590799531815998 ~1989
26591423531828478 ~1989
26591711531834238 ~1989
26591891531837838 ~1989
26592491531849838 ~1989
26592563531851278 ~1989
265929312659293119 ~1991
26593223531864478 ~1989
265933512659335119 ~1991
26593631531872638 ~1989
26593943531878878 ~1989
265940392127523139 ~1990
26595143531902878 ~1989
265953971595723839 ~1990
265960931595765599 ~1990
26596259531925198 ~1989
26596499531929998 ~1989
265965893723522479 ~1991
26597003531940078 ~1989
26597531531950638 ~1989
265975697979270719 ~1992
26598059531961198 ~1989
26598083531961678 ~1989
Exponent Prime Factor Digits Year
26598563531971278 ~1989
265986971595921839 ~1990
26598839531976798 ~1989
26599403531988078 ~1989
26600159532003198 ~1989
26600219532004398 ~1989
266003771596022639 ~1990
26601023532020478 ~1989
26601791532035838 ~1989
26601803532036078 ~1989
266019292128154339 ~1990
26602391532047838 ~1989
26603051532061038 ~1989
26603639532072798 ~1989
26604299532085998 ~1989
26604563532091278 ~1989
26604863532097278 ~1989
26605079532101598 ~1989
266052531596315199 ~1990
266056131596336799 ~1990
26605763532115278 ~1989
266058371596350239 ~1990
26606243532124878 ~1989
266067196385612579 ~1992
266067592128540739 ~1990
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25-05-04