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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
190036611140219679 ~1989
19004231380084638 ~1988
190047011140282079 ~1989
19004879380097598 ~1988
19005023380100478 ~1988
19006139380122798 ~1988
19006679380133598 ~1988
19006931380138638 ~1988
19006979380139598 ~1988
19007171380143438 ~1988
19007711380154238 ~1988
190077971140467839 ~1989
19008221163470700710 ~1992
19008263380165278 ~1988
19009583380191678 ~1988
19009751380195038 ~1988
19009811380196238 ~1988
19010291380205838 ~1988
190105011140630079 ~1989
19010759380215198 ~1988
190108991901089919 ~1990
19011131380222638 ~1988
190115831901158319 ~1990
19011743380234878 ~1988
190123731140742399 ~1989
Exponent Prime Factor Digits Year
19012583380251678 ~1988
190132371521058979 ~1989
19013279380265598 ~1988
19013363380267278 ~1988
19013411380268238 ~1988
19013999380279998 ~1988
190141611140849679 ~1989
190143791901437919 ~1990
190146134183214879 ~1990
19016111380322238 ~1988
19016243380324878 ~1988
19016351380327038 ~1988
19016887125511454310 ~1992
19016951380339038 ~1988
19017023380340478 ~1988
19017059380341198 ~1988
19017191380343838 ~1988
19017731380354638 ~1988
190178572263124983111 ~1995
19017899380357998 ~1988
190181418748344879 ~1991
19018463380369278 ~1988
19018739380374798 ~1988
19018931380378638 ~1988
190191673423450079 ~1990
Exponent Prime Factor Digits Year
19019219380384398 ~1988
19019543380390878 ~1988
19019603380392078 ~1988
19019783380395678 ~1988
19020779380415598 ~1988
19020791380415838 ~1988
19021571380431438 ~1988
190219732663076239 ~1990
19022351380447038 ~1988
19022519380450398 ~1988
19022891380457838 ~1988
19024223380484478 ~1988
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
Exponent Prime Factor Digits Year
19030031380600638 ~1988
190305119134645299 ~1991
190309371141856239 ~1989
19031123380622478 ~1988
19031951380639038 ~1988
190325111903251119 ~1990
19032659380653198 ~1988
19033043380660878 ~1988
19033823380676478 ~1988
19034699380693998 ~1988
19035323380706478 ~1988
19035491380709838 ~1988
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
1379
GIMPS The Prime Pages FactorDb.com
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25-04-13