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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
16626473103084132710 ~1991
16626503332530078 ~1987
16626611332532238 ~1987
16627151332543038 ~1987
16627379332547598 ~1987
166273971330191779 ~1989
16627463332549278 ~1987
16627511332550238 ~1987
16627571332551438 ~1987
16627861997671678 ~1989
16628351332567038 ~1987
16628603332572078 ~1987
16628761997725678 ~1989
166291872660669939 ~1990
166292511330340099 ~1989
166293377649495039 ~1991
16629491332589838 ~1987
16629551332591038 ~1987
16629611332592238 ~1987
166300491330403939 ~1989
166301691330413539 ~1989
16630583332611678 ~1987
166312491330499939 ~1989
16631401997884078 ~1989
166321791330574339 ~1989
Exponent Prime Factor Digits Year
166321797983445939
166321912993794399 ~1990
16632359332647198 ~1987
166324793991794979 ~1990
16633223332664478 ~1987
166338671663386719 ~1989
16633943332678878 ~1987
166343236653729219 ~1991
166344111330752899 ~1989
166344472994200479 ~1990
166347911663479119 ~1989
16635097998105838 ~1989
16635119332702398 ~1987
166351492328920879 ~1989
16635263332705278 ~1987
16635323332706478 ~1987
16635683332713678 ~1987
16635959332719198 ~1987
166360031663600319 ~1989
166364639316419299 ~1991
16637273998236398 ~1989
16637639332752798 ~1987
16637837998270238 ~1989
166378792994818239 ~1990
166378971331031779 ~1989
Exponent Prime Factor Digits Year
16638371332767438 ~1987
16638491332769838 ~1987
16638731332774638 ~1987
16639163332783278 ~1987
16639391332787838 ~1987
166394871331158979 ~1989
16639657998379438 ~1989
16640003332800078 ~1987
16640411332808238 ~1987
166404532329663439 ~1989
16640531332810638 ~1987
16640759332815198 ~1987
16641239332824798 ~1987
16641791332835838 ~1987
16642739332854798 ~1987
16642751332855038 ~1987
16642981998578878 ~1989
16643531332870638 ~1987
16643579332871598 ~1987
16644059332881198 ~1987
16644113998646798 ~1989
16644371332887438 ~1987
16644443332888878 ~1987
16644671332893438 ~1987
16644973998698398 ~1989
Exponent Prime Factor Digits Year
16645199332903998 ~1987
16645823332916478 ~1987
16646243332924878 ~1987
16646699332933998 ~1987
16646711332934238 ~1987
16646771332935438 ~1987
16647359332947198 ~1987
16647443332948878 ~1987
16647733998863998 ~1989
166477971331823779 ~1989
16648061998883678 ~1989
16648139332962798 ~1987
16648259332965198 ~1987
16648283332965678 ~1987
16648319332966398 ~1987
166487271331898179 ~1989
166491671664916719 ~1989
16649543332990878 ~1987
16649603332992078 ~1987
16649663332993278 ~1987
16650071333001438 ~1987
16650083333001678 ~1987
16650143333002878 ~1987
166509291332074339 ~1989
166512533996300739 ~1990
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