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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
478609195721837 ~1983
4786193287171598 ~1984
478634395726877 ~1983
4786471478647118 ~1985
4786697287201838 ~1984
4786697670137598
478670395734077 ~1983
47867031244542799
478706395741277 ~1983
478733995746797 ~1983
4787593287255598 ~1984
4787597287255838 ~1984
4787771383021698 ~1985
4787803478780318 ~1985
478801195760237 ~1983
478813195762637 ~1983
4788731383098498 ~1985
4788733287323998 ~1984
47887571149301699 ~1986
47887672298608179 ~1987
478886395777277 ~1983
4788929383114338 ~1985
4789073287344398 ~1984
478909195781837 ~1983
478919995783997 ~1983
Exp. Prime Factor Digits Year
4789199383135938
4789541383163298 ~1985
47896371149512899 ~1986
4790047479004718 ~1985
479006395801277 ~1983
479011195802237 ~1983
4790237383218978 ~1985
479033995806797 ~1983
4790419862275438 ~1985
479045995809197 ~1983
47905371149728899 ~1986
479069995813997 ~1983
4791043479104318 ~1985
47910491149851779 ~1986
4791077287464638 ~1984
4791089383287138 ~1985
47911972683070339 ~1987
4791239383299138 ~1985
4791257383300578 ~1985
479144395828877 ~1983
47915032395751519 ~1987
479177995835597 ~1983
4791881287512878 ~1984
479191195838237 ~1983
4791937287516238 ~1984
Exp. Prime Factor Digits Year
479195995839197 ~1983
47920192396009519 ~1987
479203195840637 ~1983
4792141287528478 ~1984
4792153766744498 ~1985
4792169383373538 ~1985
4792247383379778 ~1985
479243995848797 ~1983
479245195849037 ~1983
4792639246341644710 ~1989
479264395852877 ~1983
479287195857437 ~1983
4792889671004478 ~1985
47929331150303939 ~1986
479336395867277 ~1983
479353195870637 ~1983
4793851767016178 ~1985
47938631629913439 ~1986
4794259479425918 ~1985
47942691438280719 ~1986
4794287383542978 ~1985
479429995885997 ~1983
4794299862973838
4794437287666238 ~1984
479474395894877 ~1983
Exp. Prime Factor Digits Year
4794781287686878 ~1984
479479195895837 ~1983
479489995897997 ~1983
4794953671293438 ~1985
47949614219565699 ~1987
4795157287709438 ~1984
4795243479524318 ~1985
4795337383626978 ~1985
47956131534596179 ~1986
4795873287752398 ~1984
479588395917677 ~1983
4796039383683138 ~1985
4796081287764878 ~1984
47960831151059939 ~1986
479611195922237 ~1983
4796119479611918 ~1985
4796191767390578 ~1985
4796237287774238 ~1984
4796249383699938 ~1985
4796381383710498 ~1985
4796437287786238 ~1984
4796593287795598 ~1984
479663995932797 ~1983
47966991151207779 ~1986
479678395935677 ~1983
660
GIMPS The Prime Pages FactorDb.com
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25-04-13