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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
1866989149359138 ~1981
1867079149366338 ~1981
1867253112035198 ~1981
186725937345197 ~1980
1867321298771378 ~1982
1867321560196318
1867373261432238 ~1982
1868051784581438 ~1983
18681492241778819 ~1984
1868179186817918 ~1982
186818337363677 ~1980
1868257448381698 ~1983
1868371336306798 ~1982
1868381896822898 ~1983
1868501710030398 ~1983
186851937370397 ~1980
186859137371837 ~1980
1868599186859918 ~1982
1868641747456418 ~1983
1868663107634988910 ~1986
1868687149494978 ~1981
1868687485858638
1868747448499298 ~1983
186884337376877 ~1980
1868851299016178 ~1982
Exp. Prime Factor Digits Year
1869053448572738 ~1983
1869097299055538 ~1982
1869139186913918 ~1982
1869193448606338 ~1983
1869221112153278 ~1981
18693411458085999 ~1984
1869529448686978 ~1983
186955137391037 ~1980
1869649411322798 ~1983
1869691169394004710 ~1986
1869731149578498 ~1981
1869737149578978 ~1981
1869853112191198 ~1981
1869871186987118 ~1982
186997137399437 ~1980
187001937400397 ~1980
187025937405197 ~1980
1870411187041118 ~1982
1870433112225998 ~1981
1870577149646178 ~1981
187061937412397 ~1980
187085937417197 ~1980
1870919336765438 ~1982
1870927299348338 ~1982
1871057261947998 ~1982
Exp. Prime Factor Digits Year
1871081112264878 ~1981
18711717784071379 ~1986
187118337423677 ~1980
1871321149705698 ~1981
187145937429197 ~1980
1871549262016878 ~1982
187159137431837 ~1980
187165137433037 ~1980
1871777112306638 ~1981
18717771010759599
1871827299492338 ~1982
18718433294443699 ~1985
187195137439037 ~1980
187232337446477 ~1980
1872421112345278 ~1981
1872473419433952110 ~1987
1872667187266718 ~1982
18726672696640499
18727131161082079 ~1984
187274337454877 ~1980
1873013112380798 ~1981
1873099786701598 ~1983
1873211786748638 ~1983
1873217112393038 ~1981
1873321112399278 ~1981
Exp. Prime Factor Digits Year
1873409262277278 ~1982
1873433262280638 ~1982
1873441412157038 ~1983
1873507899283378 ~1983
18735832248299619 ~1984
1873637112418238 ~1981
1873849412246798 ~1983
18738892810833519 ~1985
18739792698529779 ~1985
187403937480797 ~1980
18740511236873679 ~1984
1874099599711698 ~1983
187430337486077 ~1980
1874491187449118 ~1982
1874599337427838 ~1982
1874669262453678 ~1982
187469937493997 ~1980
1874767187476718 ~1982
1874837112490238 ~1981
1874857112491438 ~1981
1874869449968578 ~1983
187490337498077 ~1980
1874921112495278 ~1981
1874941112496478 ~1981
187505937501197 ~1980
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25-11-17