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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
1916729153338338 ~1982
1916729268342078
1916857115011438 ~1981
1916951805119438 ~1983
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
1918079805593198
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
Exp. Prime Factor Digits Year
1920497576149118
1920587153646978 ~1982
1920593115235598 ~1981
192059938411997 ~1980
1920617460948098 ~1983
1920637921905778 ~1983
192068338413677 ~1980
1920701115242078 ~1981
19208035877657199 ~1985
192083938416797 ~1980
192095938419197 ~1980
1921021576306318 ~1983
1921097115265838 ~1981
1921177768470818 ~1983
1921229153698338 ~1982
1921457269003998 ~1982
1921457576437118
192149938429997 ~1980
1921657115299438 ~1981
1921921576576318 ~1983
19221191230156179 ~1984
1922353461364738 ~1983
1922407653618398 ~1983
192242338448477 ~1980
192247138449437 ~1980
Exp. Prime Factor Digits Year
1922519153801538 ~1982
192257938451597 ~1980
192266338453277 ~1980
1922689461445378 ~1983
1922719346089438 ~1982
1922771346098798 ~1982
192295138459037 ~1980
1923013423062878 ~1983
19230131038427039
1923079346154238 ~1982
1923197153855778 ~1982
19232811077037379 ~1984
1923749153899938 ~1982
1923751307800178 ~1982
192379138475837 ~1980
1923797153903778 ~1982
19237974309305299
1923841115430478 ~1981
1923853461724738 ~1983
1924093461782338 ~1983
1924199153935938 ~1982
192434338486877 ~1980
1924393307902898 ~1982
1924459192445918 ~1982
1924627654373198 ~1983
388
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26-07-05