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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.
Exp. Prime Factor Digits Year
1214483971586418 ~1982
12145191481713199 ~1983
1214567218622078 ~1981
121463924292797 ~1978
1214641194342578 ~1981
1214657461569678 ~1982
1214657680207938
1214671121467118 ~1980
1214729971783218 ~1982
121473772884237 ~1980
1214737485894818
1214767194362738 ~1981
1214827121482718 ~1980
1214867680325538 ~1982
1214891583147698 ~1982
1215029170104078 ~1981
1215103194416498 ~1981
1215311388899538 ~1981
1215329170146078 ~1981
12153971142473199 ~1983
1215629389001298 ~1981
121571924314397 ~1978
121571997257537
121609197287297 ~1980
1216213291891138 ~1981
Exp. Prime Factor Digits Year
1216337583841778 ~1982
121641772985037 ~1980
1216433389258578 ~1981
1216529170314078 ~1981
121661997329537 ~1980
1216693657014238 ~1982
121671773003037 ~1980
121675124335037 ~1979
121675197340097
121679997343937 ~1980
121684197347297 ~1980
121691373014797 ~1980
1216937657145998 ~1982
1216939486775618 ~1982
12169873504922579 ~1984
121701773021037 ~1980
121705373023197 ~1980
121705797364577 ~1980
121706324341277 ~1979
1217131121713118 ~1980
1217299121729918 ~1980
121739373043597 ~1980
121739924347997 ~1979
121748324349677 ~1979
121765197412097 ~1980
Exp. Prime Factor Digits Year
12176511168944979
121766324353277 ~1979
121767773060637 ~1980
121775924355197 ~1979
121792173075277 ~1980
1217933292303938 ~1981
1218307706618078 ~1982
1218473389911378 ~1981
1218649268102798 ~1981
121877924375597 ~1979
1218853195016498 ~1981
121892324378477 ~1979
1218923682596898
1219343682832098 ~1982
121945373167197 ~1980
1219577585396978 ~1982
12196199878913919 ~1985
1219649292715778 ~1981
121965773179437 ~1980
121970324394077 ~1979
121976324395277 ~1979
1219783512308878 ~1982
121985924397197 ~1979
1219871878307138 ~1982
121991373194797 ~1980
Exp. Prime Factor Digits Year
121991924398397 ~1979
121999197599297 ~1980
1220203488081218 ~1982
1220239219643038 ~1981
1220489292917378 ~1981
1220623292949538 ~1981
1220657463849678 ~1982
1220669170893678 ~1981
12207431001009279 ~1982
1220783610391518 ~1982
122081924416397 ~1979
122090324418077 ~1979
1220953488381218 ~1982
1220983122098318 ~1980
1221089586122738 ~1982
122113124422637 ~1979
122129924425997 ~1979
122138324427677 ~1979
1221551317603278 ~1981
12215931050569999 ~1983
1221631488652418 ~1982
1221667122166718 ~1980
12216671099500319
1221749366524718 ~1981
1221767610883518 ~1982
281
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25-09-07