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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.
Exp. Prime Factor Digits Year
1237727222790878 ~1981
12377631287273539 ~1983
123782324756477 ~1979
1237823321833998
123791924758397 ~1979
1238033396170578 ~1982
1238129258521335310 ~1986
1238267222888078 ~1981
123829124765837 ~1979
123842999074337 ~1980
123843774306237 ~1980
123853374311997 ~1980
123862174317277 ~1980
1238621396358738
12387492576597939 ~1984
12387591288309379 ~1983
123880174328077 ~1980
123880199104097
1238801371640318
1238821272540638 ~1981
123890324778077 ~1979
1238917669015198 ~1982
1238947594694578 ~1982
1239103297384738 ~1981
123917999134337 ~1980
Exp. Prime Factor Digits Year
1239191396541138 ~1982
123923924784797 ~1979
1239319297436578 ~1981
1239323694020898 ~1982
1239341470949598 ~1982
1239517495806818 ~1982
123956999165537 ~1980
123976174385677 ~1980
123983924796797 ~1979
12399132355834719 ~1983
123992324798477 ~1979
1239989173598478 ~1981
124002174401277 ~1980
1240153297636738 ~1981
124018199214497 ~1980
1240199396863698 ~1982
1240271223248798 ~1981
124027374416397 ~1980
124030799224577 ~1980
124039124807837 ~1979
124052324810477 ~1979
1240523818745198
124075124815037 ~1979
1240769173707678 ~1981
124085924817197 ~1979
Exp. Prime Factor Digits Year
124093124818637 ~1979
1240931397097938
1240957297829698 ~1981
124097924819597 ~1979
1241087620543518 ~1982
1241203124120318 ~1980
1241243297898338 ~1981
1241263496505218 ~1982
124129124825837 ~1979
124134174480477 ~1980
124135124827037 ~1979
124141374484797 ~1980
12414371092464579 ~1983
124148324829677 ~1979
1241491223468398 ~1981
124177124835437 ~1979
12418271986923219 ~1983
124192799354177 ~1980
124212174527277 ~1980
1242251223605198 ~1981
12425033603258719 ~1984
124280324856077 ~1979
1242811223705998 ~1981
124282799426177 ~1980
12428931068887999 ~1983
Exp. Prime Factor Digits Year
12428938451672419
124321124864237 ~1979
1243211397827538
1243309298394178 ~1981
124343999475137 ~1980
1243477198956338 ~1981
1243481373044318 ~1981
124352324870477 ~1979
1243523696372898
1243537198965938 ~1981
1243663198986098 ~1981
124369124873837 ~1979
1243717373115118 ~1981
124381124876237 ~1979
124381199504897
1243841373152318 ~1981
124385999508737 ~1980
12440273806722639 ~1984
1244053671788638 ~1982
124414199531297 ~1980
124427924885597 ~1979
1244359124435918 ~1980
124436324887277 ~1979
1244479152324229710 ~1985
1244521273794638 ~1981
286
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25-11-17