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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
40140539802810798 ~1990
401415535619817439 ~1992
40141943802838878 ~1990
401431277225762879 ~1993
40143263802865278 ~1990
40143479802869598 ~1990
40143563802871278 ~1990
40145243802904878 ~1990
40146251104380252710 ~1993
40146839802936798 ~1990
401473091373037967911 ~1996
40147403802948078 ~1990
40147631802952638 ~1990
40148099802961998 ~1990
40148123802962478 ~1990
40148617120445851110 ~1993
40151003803020078 ~1990
401510573212084579 ~1992
40151519803030398 ~1990
40152383265005727910 ~1994
40152923803058478 ~1990
40153079803061598 ~1990
40154099803081998 ~1990
40154123803082478 ~1990
40154351803087038 ~1990
Exponent Prime Factor Digits Year
401551972409311839 ~1992
40156163803123278 ~1990
40156223803124478 ~1990
40157063803141278 ~1990
40157531803150638 ~1990
40158719803174398 ~1990
40159853128511529710 ~1993
40160063803201278 ~1990
40160339803206798 ~1990
401608313212866499 ~1992
401610916425774579 ~1993
40163423803268478 ~1990
40164431803288638 ~1990
40165799803315998 ~1990
401668793213350339 ~1992
40167983803359678 ~1990
40168211803364238 ~1990
40168547104438222310 ~1993
40169243803384878 ~1990
40169377160677508110 ~1994
40169411803388238 ~1990
401696532410179199 ~1992
40169711803394238 ~1990
401710313213682499 ~1992
40172183803443678 ~1990
Exponent Prime Factor Digits Year
40172939803458798 ~1990
401734493213875939 ~1992
401739676427834739 ~1993
40174679803493598 ~1990
40175339803506798 ~1990
40177199803543998 ~1990
40178219803564398 ~1990
40178639803572798 ~1990
40178767136607807910 ~1993
401801573214412579 ~1992
40180271803605438 ~1990
40180583803611678 ~1990
40181831803636638 ~1990
40182251803645038 ~1990
40182431803648638 ~1990
401830973214647779 ~1992
401835713214685699 ~1992
40183883803677678 ~1990
40184351803687038 ~1990
401848199644356579 ~1993
40184827136628411910 ~1993
40185011803700238 ~1990
401854012411124079 ~1992
401854999644519779 ~1993
40186931803738638 ~1990
Exponent Prime Factor Digits Year
401871172411227039 ~1992
401879212411275279 ~1992
40189739803794798 ~1990
401897594018975919 ~1992
40189811803796238 ~1990
40191059803821198 ~1990
40191443385837852910 ~1994
40193603803872078 ~1990
40194743803894878 ~1990
40194911803898238 ~1990
40195163803903278 ~1990
40195451803909038 ~1990
401954513215636099
401955532411733199 ~1992
40195751803915038 ~1990
401974197235535439 ~1993
40198703803974078 ~1990
40199651803993038 ~1990
401998212411989279 ~1992
40200203804004078 ~1990
40200731804014638 ~1990
402009473216075779 ~1992
40201103804022078 ~1990
40202243804044878 ~1990
40203851804077038 ~1990
1940
GIMPS The Prime Pages FactorDb.com
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4.843.404 digits 		e-mail
25-06-08