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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
19130632295675619 ~1984
1913081153046498 ~1982
19130892257445039 ~1984
1913161114789678 ~1981
191329138265837 ~1980
1913501153080098 ~1982
1913533114811998 ~1981
19137731377916579 ~1984
191381938276397 ~1980
1913917114835038 ~1981
191396338279277 ~1980
1913969612470098 ~1983
191413138282637 ~1980
191417938283597 ~1980
191437138287437 ~1980
191444338288877 ~1980
1914487306317938 ~1982
19145932412387199 ~1984
19146411072198979 ~1984
191474338294877 ~1980
1914889459573378 ~1983
1914949574484718 ~1983
191495938299197 ~1980
1914959612786898
191510338302077 ~1980
Exp. Prime Factor Digits Year
191516338303277 ~1980
19152412719259171911 ~1989
1915289459669378 ~1983
1915337114920238 ~1981
1915619459748578 ~1983
1915663766265218 ~1983
1915691153255298 ~1982
191579938315997 ~1980
191581138316237 ~1980
1915817574745118 ~1983
1915853268219438 ~1982
1915891766356418 ~1983
1915939459825378 ~1983
1915957574787118 ~1983
1915993114959598 ~1981
1915997114959838 ~1981
1916027153282178 ~1982
19160513257286719 ~1985
1916069153285538 ~1982
1916129153290338 ~1982
1916251344925198 ~1982
19162811686327299 ~1984
191633938326797 ~1980
1916353114981198 ~1981
191654338330877 ~1980
Exp. Prime Factor Digits Year
191659138331837 ~1980
1916647191664718 ~1982
1916729153338338 ~1982
1916729268342078
1916857115011438 ~1981
1916977460074498 ~1983
1917029613449298 ~1983
1917079460098978 ~1983
1917089613468498 ~1983
191720338344077 ~1980
1917287345111678 ~1982
19173013221065699 ~1985
1917341115040478 ~1981
1917367306778738 ~1982
191747938349597 ~1980
1917493575247918 ~1983
1917493373911135110
1917511345151998 ~1982
1917623460229538 ~1983
1917667191766718 ~1982
1917737115064238 ~1981
191774338354877 ~1980
19177491495844239 ~1984
1918079153446338 ~1982
1918097115085838 ~1981
Exp. Prime Factor Digits Year
1918121115087278 ~1981
1918157115089438 ~1981
19183132570539439 ~1985
191846338369277 ~1980
1918517115111038 ~1981
1918529153482338 ~1982
191857138371437 ~1980
191864338372877 ~1980
1918747191874718 ~1982
1918919921081138 ~1983
1918921115135278 ~1981
1918991614077138 ~1983
1919279153542338 ~1982
1919299191929918 ~1982
1919377575813118 ~1983
1919839191983918 ~1982
191989138397837 ~1980
1919891499171678
1920043307206898 ~1982
1920221115213278 ~1981
192023938404797 ~1980
1920257268835998 ~1982
1920343652916638 ~1983
1920377115222638 ~1981
1920497115229838 ~1981
381
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25-12-14