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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
18663803373276078 ~1988
18663839373276798 ~1988
18664199373283998 ~1988
18664259373285198 ~1988
18664703373294078 ~1988
186648311866483119 ~1989
186648431866484319 ~1989
18665219373304398 ~1988
186653414106375039 ~1990
18665459373309198 ~1988
18665819373316398 ~1988
18666383373327678 ~1988
18666419373328398 ~1988
18666839373336798 ~1988
186672471493379779 ~1989
18667331373346638 ~1988
18667679373353598 ~1988
18667919373358398 ~1988
186680591866805919 ~1989
186682131120092799 ~1989
186683811120102879 ~1989
186685991866859919 ~1989
18668759373375198 ~1988
18669971373399438 ~1988
18670259373405198 ~1988
Exponent Prime Factor Digits Year
186712931120277599 ~1989
186716836348372239 ~1991
186723731120342399 ~1989
18673103373462078 ~1988
18673139373462798 ~1988
18673211373464238 ~1988
18673283373465678 ~1988
18673379373467598 ~1988
18673643373472878 ~1988
18674471373489438 ~1988
18674699373493998 ~1988
18674749522892972110 ~1993
18674783373495678 ~1988
18674951373499038 ~1988
186752811494022499 ~1989
186753531120521199 ~1989
18675659373513198 ~1988
18675791373515838 ~1988
186760018572284459111 ~1996
186764593361762639 ~1990
18677051373541038 ~1988
18677111373542238 ~1988
18677231373544638 ~1988
18677303373546078 ~1988
186775793361964239 ~1990
Exponent Prime Factor Digits Year
18677723373554478 ~1988
18677843373556878 ~1988
18678119373562398 ~1988
18678509145692370310 ~1992
18678623373572478 ~1988
186795531120773199 ~1989
18680003373600078 ~1988
18680111373602238 ~1988
18680159373603198 ~1988
186807593362536639 ~1990
18681203373624078 ~1988
18681431373628638 ~1988
186816971120901839 ~1989
18682091373641838 ~1988
18682619373652398 ~1988
18682679373653598 ~1988
186830331120981999 ~1989
18683183373663678 ~1988
186840131121040799 ~1989
18684299373685998 ~1988
186848231868482319 ~1989
18684863373697278 ~1988
18685571373711438 ~1988
18685619373712398 ~1988
186857571121145439 ~1989
Exponent Prime Factor Digits Year
18685871373717438 ~1988
18686543373730878 ~1988
186865731121194399 ~1989
18687083373741678 ~1988
186874331121245999 ~1989
18687731373754638 ~1988
18688391373767838 ~1988
18688451373769038 ~1988
18688583373771678 ~1988
18688643373772878 ~1988
18688823373776478 ~1988
18688931373778638 ~1988
18689003373780078 ~1988
18689771373795438 ~1988
186902571121415439 ~1989
186903171121419039 ~1989
186903771121422639 ~1989
186909012990544179 ~1990
18691103373822078 ~1988
18691511373830238 ~1988
18692183373843678 ~1988
18692711373854238 ~1988
18692819373856398 ~1988
186928191495425539
18693529489770459910 ~1993
1382
GIMPS The Prime Pages FactorDb.com
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25-06-08