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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
166085471660854719 ~1989
166087011328696099 ~1989
16608773996526398 ~1989
16608899332177998 ~1987
166089311660893119 ~1989
166092471328739779 ~1989
16609343332186878 ~1987
16609403332188078 ~1987
16609991332199838 ~1987
16610459332209198 ~1987
166105573986533699 ~1990
16610903332218078 ~1987
16610999332219998 ~1987
16611457996687438 ~1989
16611599332231998 ~1987
16611971332239438 ~1987
16612163332243278 ~1987
166125133654752879 ~1990
16612703332254078 ~1987
166127533987060739 ~1990
166129074319355839 ~1990
16614181996850878 ~1989
166146771329174179 ~1989
16614971332299438 ~1987
16615021996901278 ~1989
Exponent Prime Factor Digits Year
16615523332310478 ~1987
16616141996968478 ~1989
16616543332330878 ~1987
16616711332334238 ~1987
16616783332335678 ~1987
16616843332336878 ~1987
16617059332341198 ~1987
16617539332350798 ~1987
16618499332369998 ~1987
166185411329483299 ~1989
16618873997132398 ~1989
166189697977105139 ~1991
166190034320940799 ~1990
16619231332384638 ~1987
16619279332385598 ~1987
16619303332386078 ~1987
16619567159547843310 ~1991
16619573997174398 ~1989
16619579332391598 ~1987
166197891329583139 ~1989
16619891332397838 ~1987
166199571329596579 ~1989
16620119332402398 ~1987
16620431332408638 ~1987
166204311329634499
Exponent Prime Factor Digits Year
16620911332418238 ~1987
16621021997261278 ~1989
16621037997262238 ~1989
16621043332420878 ~1987
16621079332421598 ~1987
16621133997267998 ~1989
166211831662118319 ~1989
16621573997294398 ~1989
166221171329769379 ~1989
16622351332447038 ~1987
166229932327219039 ~1989
16623011332460238 ~1987
16623143332462878 ~1987
16623683332473678 ~1987
16624103332482078 ~1987
166247476649898819 ~1991
16624763332495278 ~1987
166248411329987299 ~1989
16625153997509198 ~1989
16625237997514238 ~1989
16625663332513278 ~1987
16625723332514478 ~1987
16626503332530078 ~1987
16626611332532238 ~1987
16627151332543038 ~1987
Exponent Prime Factor Digits Year
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
166321797983445939
166321912993794399 ~1990
16632359332647198 ~1987
166324793991794979 ~1990
1250
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24-10-27