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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
187762871877628719 ~1989
18776651375533038 ~1988
18777623375552478 ~1988
18778139375562798 ~1988
187790211126741279 ~1989
18779171375583438 ~1988
187792811126756879 ~1989
187793331126759999 ~1989
187795033004720499 ~1990
18780059375601198 ~1988
18780263375605278 ~1988
187803471502427779 ~1989
18780383375607678 ~1988
18780539375610798 ~1988
18781151375623038 ~1988
187815371126892239 ~1989
187815716010102739 ~1991
187816211126897279 ~1989
18781979375639598 ~1988
18782891375657838 ~1988
18782999375659998 ~1988
187833536010672979 ~1991
187834971127009839 ~1989
18783731375674638 ~1988
18783899375677998 ~1988
Exponent Prime Factor Digits Year
18784091375681838 ~1988
187842531127055199 ~1989
187845611127073679 ~1989
18785111375702238 ~1988
18785219375704398 ~1988
187856531127139199 ~1989
18785999375719998 ~1988
18786023375720478 ~1988
18786337221678776710 ~1992
187864573005833139 ~1990
187866131127196799 ~1989
187866611127199679 ~1989
187870071502960579 ~1989
187870791502966339 ~1989
18787283375745678 ~1988
18787319375746398 ~1988
18787511375750238 ~1988
187878411127270479 ~1989
187879911503039299 ~1989
18788279375765598 ~1988
18788543375770878 ~1988
18788603375772078 ~1988
187887291503098339 ~1989
187890531127343199 ~1989
18789059375781198 ~1988
Exponent Prime Factor Digits Year
18789359375787198 ~1988
18789371375787438 ~1988
18789923375798478 ~1988
18789971375799438 ~1988
18790631375812638 ~1988
187911071879110719 ~1989
18791183375823678 ~1988
18791603375832078 ~1988
18791891375837838 ~1988
187931211127587279 ~1989
187932971127597839 ~1989
187935131127610799 ~1989
18793751375875038 ~1988
18794003375880078 ~1988
18794159375883198 ~1988
18794459375889198 ~1988
187946691503573539 ~1989
187949215638476319 ~1991
187950613007209779 ~1990
18795289270652161710 ~1992
18795743375914878 ~1988
187963031879630319 ~1990
18796523375930478 ~1988
187967171127803039 ~1989
187968234511237539 ~1990
Exponent Prime Factor Digits Year
18797183375943678 ~1988
18797939375958798 ~1988
18798203375964078 ~1988
18798359375967198 ~1988
187986291503890339 ~1989
18798683375973678 ~1988
18799223375984478 ~1988
18799439375988798 ~1988
18800003376000078 ~1988
18800819376016398 ~1988
18801011376020238 ~1988
188016913384304399 ~1990
18802403376048078 ~1988
18802499376049998 ~1988
188027811128166879 ~1989
18803171376063438 ~1988
18803231376064638 ~1988
188040771128244639 ~1989
188040771504326179
18804959376099198 ~1988
18805331376106638 ~1988
18805463376109278 ~1988
188057331128343999 ~1989
18805739376114798 ~1988
18806519376130398 ~1988
1386
GIMPS The Prime Pages FactorDb.com
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25-06-08