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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
400321013202568099 ~1992
400333732402002399 ~1992
400339516405432179 ~1993
40034231800684638 ~1990
40034399800687998 ~1990
40034783800695678 ~1990
400352712634320831911 ~1997
40035371800707438 ~1990
400355093202840739 ~1992
400355993202847939 ~1992
40035839800716798 ~1990
40035851800717038 ~1990
40035923800718478 ~1990
40036091800721838 ~1990
400368612402211679 ~1992
40037111800742238 ~1990
400373599608966179 ~1993
40037831800756638 ~1990
40038191800763838 ~1990
40038983800779678 ~1990
40039801120119403110 ~1993
40039823800796478 ~1990
40039991800799838 ~1990
40040411800808238 ~1990
40040603800812078 ~1990
Exponent Prime Factor Digits Year
40041251800825038 ~1990
40041311800826238 ~1990
40041983800839678 ~1990
40042043800840878 ~1990
40042631800852638 ~1990
40043291800865838 ~1990
40044083800881678 ~1990
40044131800882638 ~1990
40044479800889598 ~1990
400445273203562179 ~1992
40044743800894878 ~1990
40045079800901598 ~1990
40045199800903998 ~1990
400459193203673539 ~1992
400460513203684099 ~1992
40046411800928238 ~1990
40046579800931598 ~1990
40046819800936398 ~1990
40047131800942638 ~1990
400474732402848399 ~1992
40048199800963998 ~1990
400488732402932399 ~1992
40049063800981278 ~1990
40049231800984638 ~1990
40049591800991838 ~1990
Exponent Prime Factor Digits Year
40051283801025678 ~1990
400514212403085279 ~1992
40051883801037678 ~1990
40052339801046798 ~1990
40052423801048478 ~1990
40052843801056878 ~1990
40052951801059038 ~1990
400534073204272579 ~1992
40053551801071038 ~1990
40053659801073198 ~1990
40054271801085438 ~1990
40054559801091198 ~1990
400555013204440099 ~1992
40057837120173511110 ~1993
40057931801158638 ~1990
40058591801171838 ~1990
40059143801182878 ~1990
40060637120181911110 ~1993
40061123801222478 ~1990
40061711801234238 ~1990
40061999801239998 ~1990
40062443801248878 ~1990
40063091801261838 ~1990
40063139801262798 ~1990
40063403801268078 ~1990
Exponent Prime Factor Digits Year
40064033224358584910 ~1994
400644299615462979 ~1993
400647076410353139 ~1993
40064963801299278 ~1990
40065059801301198 ~1990
40065359801307198 ~1990
40065491801309838 ~1990
40065911801318238 ~1990
40066283801325678 ~1990
40066751801335038 ~1990
40067459801349198 ~1990
40067999801359998 ~1990
40068191801363838 ~1990
40069031801380638 ~1990
400698593205588739 ~1992
40070339801406798 ~1990
40070423801408478 ~1990
400712812404276879 ~1992
40071413408728412710 ~1995
40073123801462478 ~1990
40073711801474238 ~1990
400740612404443679 ~1992
40074539801490798 ~1990
40074791801495838 ~1990
40074851801497038 ~1990
2142
GIMPS The Prime Pages FactorDb.com
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26-07-05