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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
664687911329375839 ~1992
664690615317524899 ~1994
664706991329413999 ~1992
66471217199413651110 ~1995
664762973988577839 ~1993
664780911329561839 ~1992
664781275318250179 ~1994
664819791329639599 ~1992
664831431329662879 ~1992
664850631329701279 ~1992
664888813989332879 ~1993
664897015319176099 ~1994
664897431329794879 ~1992
664927191329854399 ~1992
664934116649341119 ~1994
665005975320047779 ~1994
665009391330018799 ~1992
665018631330037279 ~1992
665018933990113599 ~1993
66504733159611359310 ~1995
665055591330111199 ~1992
665061133990366799 ~1993
665071311330142639 ~1992
665093699311311679 ~1994
665098431330196879 ~1992
Exponent Prime Factor Digits Year
665105391330210799 ~1992
66512311266049244110 ~1995
665138991330277999 ~1992
665162391330324799 ~1992
665177511330355039 ~1992
665185311330370639 ~1992
665192875321542979 ~1994
665217711330435439 ~1992
665229591330459199 ~1992
665239733991438399 ~1993
665254013991524079 ~1993
665258391330516799 ~1992
665261991330523999 ~1992
665276413991658479 ~1993
665280831330561679 ~1992
665323911330647839 ~1992
665342031330684079 ~1992
66534931119762875910 ~1994
665365791330731599 ~1992
66538231106461169710 ~1994
665410311330820639 ~1992
665421111330842239 ~1992
665442231330884479 ~1992
665448711330897439 ~1992
665448831330897679 ~1992
Exponent Prime Factor Digits Year
66546187159710848910 ~1995
665508591331017199 ~1992
665508711331017439 ~1992
665523711331047439 ~1992
665526591331053199 ~1992
665534991331069999 ~1992
665542276655422719 ~1994
665544413993266479 ~1993
665548791331097599 ~1992
665557431331114879 ~1992
665557813993346879 ~1993
665604711331209439 ~1992
66562129159749109710 ~1995
665635133993810799 ~1993
665638795325110339 ~1994
66564427106503083310 ~1994
665677195325417539 ~1994
665680911331361839 ~1992
66573233412754044710 ~1996
665732391331464799 ~1992
665734911331469839 ~1992
665739591331479199 ~1992
665744275325954179 ~1994
66575477639124579310 ~1996
665762391331524799 ~1992
Exponent Prime Factor Digits Year
665774476657744719 ~1994
665782791331565599 ~1992
665783391331566799 ~1992
665840511331681039 ~1992
665877133995262799 ~1993
665895415327163299 ~1994
665927031331854079 ~1992
665933991331867999 ~1992
665942631331885279 ~1992
665950311331900639 ~1992
665969773995818639 ~1993
665994111331988239 ~1992
665995315327962499 ~1994
666015111332030239 ~1992
666017511332035039 ~1992
666018533996111199 ~1993
666055791332111599 ~1992
666058276660582719 ~1994
666078111332156239 ~1992
66609163226471154310 ~1995
666103191332206399 ~1992
666132231332264479 ~1992
666141111332282239 ~1992
666147591332295199 ~1992
666167031332334079 ~1992
2191
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25-04-13