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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
557569191115138399 ~1991
557577711115155439 ~1991
557587431115174879 ~1991
557591631115183279 ~1991
557594413345566479 ~1993
557604231115208479 ~1991
55762517167287551110 ~1994
557627991115255999 ~1991
557631591115263199 ~1991
55763299189595216710 ~1995
557640831115281679 ~1991
557641733345850399 ~1993
557655973345935839 ~1993
557662191115324399 ~1991
557666991115333999 ~1991
55767529133842069710 ~1994
557689571639607335911 ~1997
557699991115399999 ~1991
5577031319575379863112 ~1999
55770367100386660710 ~1994
557704271305027991911 ~1997
557710911115421839 ~1991
557712414461699299 ~1993
557715711115431439 ~1991
557716133346296799 ~1993
Exponent Prime Factor Digits Year
557736711115473439 ~1991
55774129122703083910 ~1994
55774951100394911910 ~1994
557767035577670319 ~1993
557775231115550479 ~1991
55777549267732235310 ~1995
557800973346805839 ~1993
557808533346851199 ~1993
557825391115650799 ~1991
55783433133880239310 ~1994
557852391115704799 ~1991
557854791115709599 ~1991
557854794462838339
557872791115745599 ~1991
557901231115802479 ~1991
557901591115803199 ~1991
557906391115812799 ~1991
557914973347489839 ~1993
557934831115869679 ~1991
557940831115881679 ~1991
557951933347711599 ~1993
557957715579577119 ~1993
557959911115919839 ~1991
557990418927846579 ~1994
558024591116049199 ~1992
Exponent Prime Factor Digits Year
558036613348219679 ~1993
558040431116080879 ~1992
558041391116082799 ~1992
558044991116089999 ~1992
558045711116091439 ~1992
558047333348283999 ~1993
558048111116096239 ~1992
558055311116110639 ~1992
558061973348371839 ~1993
558083031116166079 ~1992
558085791116171599 ~1992
558087773348526639 ~1993
558105111116210239 ~1992
55810823145108139910 ~1994
558111173348667039 ~1993
558115431116230879 ~1992
558115791116231599 ~1992
558121314464970499 ~1993
55813283234415788710 ~1995
558136733348820399 ~1993
55815631323730659910 ~1995
558156795581567919 ~1993
558158391116316799 ~1992
558165831116331679 ~1992
558183133349098799 ~1993
Exponent Prime Factor Digits Year
558214614465716899 ~1993
558219591116439199 ~1992
558221631116443279 ~1992
558239511116479039 ~1992
558275031116550079 ~1992
558304191116608399 ~1992
558311031116622079 ~1992
558321675583216719 ~1993
558335511116671039 ~1992
558346311116692639 ~1992
558351591116703199 ~1992
558363231116726479 ~1992
558374511116749039 ~1992
55837861256854160710 ~1995
558381711116763439 ~1992
558382311116764639 ~1992
558386333350317999 ~1993
55838711234522586310 ~1995
558403911116807839 ~1992
558416991116833999 ~1992
558424311116848639 ~1992
558430311116860639 ~1992
558439791116879599 ~1992
558454213350725279 ~1993
558463311116926639 ~1992
2220
GIMPS The Prime Pages FactorDb.com
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25-11-02