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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
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
18696791373935838 ~1988
18697559373951198 ~1988
18697583373951678 ~1988
186987494487699779 ~1990
18698951373979038 ~1988
18699203373984078 ~1988
18699223583415757710 ~1993
18700163374003278 ~1988
187004571122027439 ~1989
18700499374009998 ~1988
18700691374013838 ~1988
18700763374015278 ~1988
Exponent Prime Factor Digits Year
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
187044311870443119 ~1989
18704639374092798 ~1988
18705779374115598 ~1988
18706379374127598 ~1988
18707231374144638 ~1988
18707519374150398 ~1988
18708023374160478 ~1988
187081191496649539 ~1989
18708419374168398 ~1988
187085531122513199 ~1989
187096972619357599 ~1990
18709739374194798 ~1988
Exponent Prime Factor Digits Year
18709763374195278 ~1988
18710099374201998 ~1988
18710171374203438 ~1988
187102434490458339 ~1990
187107437858512079 ~1991
18710759374215198 ~1988
18710959119750137710 ~1991
187111371122668239 ~1989
18711239374224798 ~1988
18711403134722101710 ~1992
187114791496918339 ~1989
187116074490785699 ~1990
18711743374234878 ~1988
187120811122724879 ~1989
18712943374258878 ~1988
18713291374265838 ~1988
18713339374266798 ~1988
18713963374279278 ~1988
18714023374280478 ~1988
18714659374293198 ~1988
18714719374294398 ~1988
18714779374295598 ~1988
187149196363072479 ~1991
18714959374299198 ~1988
187152531122915199 ~1989
Exponent Prime Factor Digits Year
187158311871583119 ~1989
18715871374317438 ~1988
18716231374324638 ~1988
18716471374329438 ~1988
18716531374330638 ~1988
187176611123059679 ~1989
18717971374359438 ~1988
18718019374360398 ~1988
18718103374362078 ~1988
18718319374366398 ~1988
18718379374367598 ~1988
18718943374378878 ~1988
18719219374384398 ~1988
187193571123161439 ~1989
187195094118291980111 ~1995
187195491497563939 ~1989
18720203374404078 ~1988
18720599374411998 ~1988
187208811123252879 ~1989
187210071497680579 ~1989
18721271374425438 ~1988
187219873369957679 ~1990
18721991374439838 ~1988
18722183374443678 ~1988
187226331123357999 ~1989
1383
GIMPS The Prime Pages FactorDb.com
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25-06-08