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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
27527939550558798 ~1989
27528071550561438 ~1989
27528239550564798 ~1989
27528443550568878 ~1989
27528779550575598 ~1989
27529319550586398 ~1989
27529343550586878 ~1989
275296612202372899 ~1991
27529969198215776910 ~1993
27530039550600798 ~1989
27530603550612078 ~1989
275306171651837039 ~1990
27531743550634878 ~1989
275318534405096499 ~1991
27532019550640398 ~1989
27532931550658638 ~1989
27533111550662238 ~1989
27533279550665598 ~1989
275335331652011999 ~1990
275341672202733379 ~1991
27534911550698238 ~1989
27535031550700638 ~1989
275350636608415139 ~1992
27535451550709038 ~1989
27535463550709278 ~1989
Exponent Prime Factor Digits Year
27536423550728478 ~1989
27536903550738078 ~1989
27537179550743598 ~1989
27537239550744798 ~1989
27538151550763038 ~1989
275382412203059299 ~1991
27538319550766398 ~1989
27538499550769998 ~1989
27538919550778398 ~1989
27538991550779838 ~1989
27539111550782238 ~1989
27539279550785598 ~1989
27539591550791838 ~1989
27539801347001492710 ~1994
27539903550798078 ~1989
27540563550811278 ~1989
27540599550811998 ~1989
27540659550813198 ~1989
27540791550815838 ~1989
275419372203354979 ~1991
275422971652537839 ~1990
27542579550851598 ~1989
27542699550853998 ~1989
27542759550855198 ~1989
27542783550855678 ~1989
Exponent Prime Factor Digits Year
27542831550856638 ~1989
27543203550864078 ~1989
27543311550866238 ~1989
275435472754354719 ~1991
275437211652623279 ~1990
27543959550879198 ~1989
275440731652644399 ~1990
275448314958069599 ~1991
27544859550897198 ~1989
275453512203628099 ~1991
27545543550910878 ~1989
275455498814575699 ~1992
27545951550919038 ~1989
27546419550928398 ~1989
275466794958402239 ~1991
27546719550934398 ~1989
27547139550942798 ~1989
275474414407590579 ~1991
27547763550955278 ~1989
27548099550961998 ~1989
275483771652902639 ~1990
27548519550970398 ~1989
27548771550975438 ~1989
27548819550976398 ~1989
27549023550980478 ~1989
Exponent Prime Factor Digits Year
27549143550982878 ~1989
27549323550986478 ~1989
275498692203989539 ~1991
275501411653008479 ~1990
27550283551005678 ~1989
275504992204039939 ~1991
27550511551010238 ~1989
27551099551021998 ~1989
27551191115715002310 ~1992
275513714408219379 ~1991
275514771653088639 ~1990
275517072755170719 ~1991
27551759551035198 ~1989
27552839551056798 ~1989
27552851551057038 ~1989
27552923551058478 ~1989
27553979551079598 ~1989
27554651551093038 ~1989
27554699551093998 ~1989
27554783551095678 ~1989
27554903551098078 ~1989
27555179551103598 ~1989
275559011653354079 ~1990
27556019551120398 ~1989
275570834409133299 ~1991
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26-03-15