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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
188569697542787619 ~1991
18856979377139598 ~1988
18857099377141998 ~1988
18857483377149678 ~1988
18857651377153038 ~1988
18857759377155198 ~1988
18858923377178478 ~1988
18858971377179438 ~1988
18859259377185198 ~1988
18859871377197438 ~1988
18860111377202238 ~1988
188603931131623599 ~1989
18860591377211838 ~1988
18860843377216878 ~1988
18860903377218078 ~1988
188609811131658879 ~1989
188611213017779379 ~1990
18861539377230798 ~1988
18861743377234878 ~1988
18862379377247598 ~1988
18862619377252398 ~1988
18863291377265838 ~1988
18863459377269198 ~1988
18863843377276878 ~1988
18863879377277598 ~1988
Exponent Prime Factor Digits Year
18864119377282398 ~1988
188642211509137699 ~1989
18864491377289838 ~1988
18864743377294878 ~1988
18864803377296078 ~1988
18864971377299438 ~1988
188656971131941839 ~1989
18865799377315998 ~1988
188665871886658719 ~1990
18867071377341438 ~1988
18867143377342878 ~1988
18867479377349598 ~1988
188679171509433379 ~1989
18868511377370238 ~1988
18868523377370478 ~1988
18868931377378638 ~1988
188691531132149199 ~1989
18869171377383438 ~1988
18869423377388478 ~1988
18869891377397838 ~1988
18870023377400478 ~1988
18870191377403838 ~1988
188701972641827599 ~1990
188703611132221679 ~1989
18870479377409598 ~1988
Exponent Prime Factor Digits Year
18871031377420638 ~1988
18871211377424238 ~1988
188712911887129119 ~1990
188713796038841299 ~1991
18871571377431438 ~1988
18871943377438878 ~1988
18872219377444398 ~1988
188723092642123279 ~1990
18872411377448238 ~1988
18872603377452078 ~1988
18873131377462638 ~1988
18873551377471038 ~1988
18873611377472238 ~1988
18873779377475598 ~1988
18874991377499838 ~1988
18875399377507998 ~1988
188762591887625919 ~1990
18876503377530078 ~1988
188765531132593199 ~1989
18876743377534878 ~1988
18877091377541838 ~1988
18877571377551438 ~1988
18877679377553598 ~1988
188777171132663039 ~1989
188779971132679839 ~1989
Exponent Prime Factor Digits Year
188782211132693279 ~1989
18878291377565838 ~1988
188784375663531119 ~1991
188784671887846719 ~1990
188787734530905539 ~1990
18878939377578798 ~1988
18879491377589838 ~1988
18879599377591998 ~1988
18879671377593438 ~1988
188796771132780639 ~1989
18880451377609038 ~1988
18880583377611678 ~1988
188809371510474979 ~1989
18882959377659198 ~1988
188830132643621839 ~1990
18883043377660878 ~1988
18884291377685838 ~1988
188852531133115199 ~1989
188853671888536719 ~1990
18885983377719678 ~1988
188862673021802739 ~1990
188864111888641119 ~1990
18886799377735998 ~1988
188872873399711679 ~1990
188881131133286799 ~1989
1374
GIMPS The Prime Pages FactorDb.com
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25-04-13