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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
18674951373499038 ~1988
186752811494022499 ~1989
186753531120521199 ~1989
18675659373513198 ~1988
18675791373515838 ~1988
186760018572284459111 ~1996
186764593361762639 ~1990
18677051373541038 ~1988
18677111373542238 ~1988
18677231373544638 ~1988
18677303373546078 ~1988
186775793361964239 ~1990
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
Exponent Prime Factor Digits Year
18682091373641838 ~1988
18682619373652398 ~1988
18682679373653598 ~1988
186830331120981999 ~1989
18683183373663678 ~1988
186840131121040799 ~1989
18684299373685998 ~1988
186848231868482319 ~1989
18684863373697278 ~1988
18685571373711438 ~1988
18685619373712398 ~1988
186857571121145439 ~1989
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
Exponent Prime Factor Digits Year
18689771373795438 ~1988
186902571121415439 ~1989
186903171121419039 ~1989
186903771121422639 ~1989
186909012990544179 ~1990
18691103373822078 ~1988
18691511373830238 ~1988
18692183373843678 ~1988
18692711373854238 ~1988
18692819373856398 ~1988
186928191495425539
18693529489770459910 ~1993
186938811121632879 ~1989
18693959373879198 ~1988
18694031373880638 ~1988
18694079373881598 ~1988
18694199373883998 ~1988
18694691373893838 ~1988
18694859373897198 ~1988
18694919373898398 ~1988
18695051373901038 ~1988
18695279373905598 ~1988
18696299373925998 ~1988
18696479373929598 ~1988
18696563373931278 ~1988
Exponent Prime Factor Digits Year
18696791373935838 ~1988
18697559373951198 ~1988
18697583373951678 ~1988
186987494487699779 ~1990
18698951373979038 ~1988
18699203373984078 ~1988
18699223583415757710 ~1993
18700163374003278 ~1988
187004571122027439 ~1989
18700499374009998 ~1988
18700691374013838 ~1988
18700763374015278 ~1988
187009073366163279 ~1990
18701183374023678 ~1988
187013994488335779 ~1990
18701531374030638 ~1988
187027011122162079 ~1989
187028991496231939 ~1989
18703511374070238 ~1988
187037811122226879 ~1989
18703931374078638 ~1988
18704111374082238 ~1988
18704243374084878 ~1988
18704363374087278 ~1988
187043811496350499 ~1989
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