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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
24256643485132878 ~1989
24257339485146798 ~1989
24257399485147998 ~1989
24257483485149678 ~1989
242577131455462799 ~1990
24257771485155438 ~1989
24258323485166478 ~1989
24258551485171038 ~1989
24258743485174878 ~1989
24259199485183998 ~1989
24259223485184478 ~1989
242598432425984319 ~1990
24260459485209198 ~1989
242606113881697779 ~1991
242608571455651439 ~1990
242616171940929379 ~1990
24261683485233678 ~1989
242627811455766879 ~1990
24262919485258398 ~1989
24263243485264878 ~1989
242642114367557999 ~1991
24264371485287438 ~1989
242644333882309299 ~1991
24264479485289598 ~1989
242653571455921439 ~1990
Exponent Prime Factor Digits Year
24265751485315038 ~1989
24266171485323438 ~1989
242663691941309539 ~1990
24266843485336878 ~1989
24268019485360398 ~1989
24268463485369278 ~1989
242692575824621699 ~1991
24269363485387278 ~1989
24269603485392078 ~1989
242699571941596579 ~1990
242700899222633839 ~1992
24270443485408878 ~1989
242705991941647939 ~1990
242706291941650339 ~1990
24270671485413438 ~1989
24270803485416078 ~1989
24271343485426878 ~1989
242725373398155199 ~1991
24272711485454238 ~1989
24272771485455438 ~1989
24272903485458078 ~1989
24272939485458798 ~1989
24273251485465038 ~1989
24274199485483998 ~1989
24274259485485198 ~1989
Exponent Prime Factor Digits Year
24274823485496478 ~1989
242752611942020899 ~1990
242761011456566079 ~1990
242767931456607599 ~1990
24276911485538238 ~1989
24277163485543278 ~1989
24277559485551198 ~1989
24278291485565838 ~1989
24278591485571838 ~1989
24278651485573038 ~1989
24279719485594398 ~1989
24279863485597278 ~1989
24280523485610478 ~1989
24280799485615998 ~1989
24280871485617438 ~1989
242810114370581999 ~1991
24281039485620798 ~1989
24281303485626078 ~1989
242814179226938479 ~1992
24281459485629198 ~1989
242818191942545539 ~1990
24282059485641198 ~1989
24282299485645998 ~1989
242824813885196979 ~1991
242840531457043199 ~1990
Exponent Prime Factor Digits Year
24284231485684638 ~1989
24284531485690638 ~1989
242847475828339299 ~1991
24285083485701678 ~1989
24285203485704078 ~1989
242858391942867139 ~1990
242868131457208799 ~1990
24287051485741038 ~1989
24287423485748478 ~1989
24287843485756878 ~1989
24288311485766238 ~1989
242886735343508079 ~1991
24288791485775838 ~1989
24288923485778478 ~1989
242899274372186879 ~1991
24290663485813278 ~1989
24290699485813998 ~1989
24291959485839198 ~1989
24292043485840878 ~1989
242922074372597279 ~1991
24292211485844238 ~1989
242923971943391779 ~1990
24292451485849038 ~1989
24292511485850238 ~1989
242925735344366079 ~1991
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25-04-13