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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
206544771239268639 ~1989
206544771652358179
20654951413099038 ~1988
20654999413099998 ~1988
20655143413102878 ~1988
20655203413104078 ~1988
20656463413129278 ~1988
20656589111545580710 ~1992
20656799413135998 ~1988
20657603413152078 ~1988
20658299413165998 ~1988
206589971239539839 ~1989
206596011239576079 ~1989
20659763413195278 ~1988
20659799413195998 ~1988
20659871413197438 ~1988
20660483413209678 ~1988
20660879413217598 ~1988
206611911652895299 ~1990
20661419413228398 ~1988
20661551413231038 ~1988
206619593719152639 ~1990
206619611239717679 ~1989
206623071652984579 ~1990
206623934958974339 ~1991
Exponent Prime Factor Digits Year
20662561181830536910 ~1992
20662619413252398 ~1988
20662643413252878 ~1988
20662931413258638 ~1988
20662979413259598 ~1988
20663183413263678 ~1988
20663603413272078 ~1988
20663759413275198 ~1988
20664431413288638 ~1988
20664659413293198 ~1988
206653632066536319 ~1990
20665451413309038 ~1988
20666759413335198 ~1988
206672811653382499 ~1990
20668139413362798 ~1988
20668331413366638 ~1988
20668451413369038 ~1988
20668799413375998 ~1988
20668811413376238 ~1988
20668859413377198 ~1988
20669303413386078 ~1988
206693571653548579 ~1990
20669783413395678 ~1988
20669879413397598 ~1988
20670311413406238 ~1988
Exponent Prime Factor Digits Year
206703411240220479 ~1989
206704211240225279 ~1989
20670719413414398 ~1988
20670731413414638 ~1988
20670959413419198 ~1988
20671019413420398 ~1988
20671103413422078 ~1988
20671499413429998 ~1988
206718176201545119 ~1991
206718792067187919 ~1990
20671883413437678 ~1988
20672471413449438 ~1988
206730771240384639 ~1989
20673203413464078 ~1988
20673409210868771910 ~1992
206735998682911599 ~1991
20673677161254680710 ~1992
206740671653925379 ~1990
20674331413486638 ~1988
206745792303148100711 ~1995
20674763413495278 ~1988
20674931413498638 ~1988
20675471413509438 ~1988
20675639413512798 ~1988
206760312067603119 ~1990
Exponent Prime Factor Digits Year
20676119413522398 ~1988
20676431413528638 ~1988
20676611413532238 ~1988
206767073721807279 ~1990
206770916616669139 ~1991
20677619413552398 ~1988
20678159413563198 ~1988
20678351413567038 ~1988
20679023413580478 ~1988
20679251413585038 ~1988
206794011654352099 ~1990
206794191654353539 ~1990
20679551413591038 ~1988
206797971240787839 ~1989
20680199413603998 ~1988
20680259413605198 ~1988
20680931413618638 ~1988
20681663413633278 ~1988
20681891413637838 ~1988
206822931240937599 ~1989
206825531240953199 ~1989
20682671413653438 ~1988
206829731240978399 ~1989
20683139413662798 ~1988
206838131241028799 ~1989
1525
GIMPS The Prime Pages FactorDb.com
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26-03-15