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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
19025183106541024910 ~1991
19025339380506798 ~1988
19025399380507998 ~1988
190255971141535839 ~1989
19025939380518798 ~1988
190261071522088579 ~1989
190263771141582639 ~1989
19027919380558398 ~1988
19028039380560798 ~1988
19028759380575198 ~1988
19028903380578078 ~1988
19028963380579278 ~1988
19030019380600398 ~1988
19030031380600638 ~1988
190305119134645299 ~1991
190309371141856239 ~1989
19031123380622478 ~1988
19031951380639038 ~1988
190325111903251119 ~1990
19032659380653198 ~1988
19033043380660878 ~1988
19033823380676478 ~1988
19034699380693998 ~1988
19035323380706478 ~1988
19035491380709838 ~1988
Exponent Prime Factor Digits Year
190356131142136799 ~1989
190363379137441779 ~1991
190367571142205439 ~1989
190368073045889139 ~1990
19036943380738878 ~1988
190376511523012099 ~1989
19037783380755678 ~1988
190380676472942799 ~1991
19038119380762398 ~1988
190382331142293999 ~1989
19038611380772238 ~1988
19039019380780398 ~1988
19039037255123095910 ~1992
19039199380783998 ~1988
19039523380790478 ~1988
190395673427122079 ~1990
190397211523177699 ~1989
19040363380807278 ~1988
190404313046468979 ~1990
190405094188911999 ~1990
19040579380811598 ~1988
19040951380819038 ~1988
19040999380819998 ~1988
190415091523320739 ~1989
19041551380831038 ~1988
Exponent Prime Factor Digits Year
19041563380831278 ~1988
190417611142505679 ~1989
19041839380836798 ~1988
190418996093407699 ~1991
190422011142532079 ~1989
19042223380844478 ~1988
19042619380852398 ~1988
190427571142565439 ~1989
19042799380855998 ~1988
190430271523442179 ~1989
19043159380863198 ~1988
19043351380867038 ~1988
19043963380879278 ~1988
190445691523565539 ~1989
190447911523583299 ~1989
19045751380915038 ~1988
190457571142745439 ~1989
190461911904619119 ~1990
19046459380929198 ~1988
19047491380949838 ~1988
190476891523815139 ~1989
190477277619090819 ~1991
19047911380958238 ~1988
19049183380983678 ~1988
190494473428900479 ~1990
Exponent Prime Factor Digits Year
19049759380995198 ~1988
190498811142992879 ~1989
190500013048000179 ~1990
19050263381005278 ~1988
190505831905058319 ~1990
19050623381012478 ~1988
19051583381031678 ~1988
19051691381033838 ~1988
19051979381039598 ~1988
19052279381045598 ~1988
19052399381047998 ~1988
19052543381050878 ~1988
190528331143169999 ~1989
19053011381060238 ~1988
19053059381061198 ~1988
19053239381064798 ~1988
19054043381080878 ~1988
19054151381083038 ~1988
19055279381105598 ~1988
19055843381116878 ~1988
19056899381137998 ~1988
190572171524577379 ~1989
19057403381148078 ~1988
19057463381149278 ~1988
190576031905760319 ~1990
1402
GIMPS The Prime Pages FactorDb.com
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25-07-08