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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
19814466971188868018311 ~2005
1981459559396291911910 ~2004
19814656491585172519311 ~2005
19815842871585267429711 ~2005
1981607759396321551910 ~2004
1981740443396348088710 ~2004
19817443131189046587911 ~2005
1981767479396353495910 ~2004
1981783319396356663910 ~2004
1981919939396383987910 ~2004
19819761411585580912911 ~2005
1982074079396414815910 ~2004
19821300614360686134311 ~2006
1982154203396430840710 ~2004
198220588952330235469712 ~2009
19822987371189379242311 ~2005
19824629571189477774311 ~2005
19824770411189486224711 ~2005
1982487431396497486310 ~2004
1982523971396504794310 ~2004
1982548643396509728710 ~2004
1982625719396525143910 ~2004
1982667623396533524710 ~2004
19827886071586230885711 ~2005
19828195131189691707911 ~2005
Exponent Prime Factor Digits Year
19828350971189701058311 ~2005
198289096711104189415312 ~2007
1982896319396579263910 ~2004
1982898503396579700710 ~2004
1982940623396588124710 ~2004
1982966039396593207910 ~2004
1982967719396593543910 ~2004
1982972039396594407910 ~2004
1982974403396594880710 ~2004
1983002363396600472710 ~2004
1983013163396602632710 ~2004
1983039731396607946310 ~2004
19830466491586437319311 ~2005
1983051263396610252710 ~2004
1983129419396625883910 ~2004
1983193211396638642310 ~2004
1983201299396640259910 ~2004
1983275771396655154310 ~2004
1983294023396658804710 ~2004
1983316319396663263910 ~2004
1983316943396663388710 ~2004
1983346643396669328710 ~2004
19833487611586679008911 ~2005
19836045171190162710311 ~2005
1983722243396744448710 ~2004
Exponent Prime Factor Digits Year
19839231531190353891911 ~2005
1983940019396788003910 ~2004
19840277231984027723111 ~2005
1984121879396824375910 ~2004
1984205339396841067910 ~2004
19844671271984467127111 ~2005
1984472519396894503910 ~2004
1984497059396899411910 ~2004
1984505459396901091910 ~2004
1984511423396902284710 ~2004
19846206071984620607111 ~2005
1984631651396926330310 ~2004
19846471213175435393711 ~2006
1984709159396941831910 ~2004
1984775459396955091910 ~2004
1984820171396964034310 ~2004
198496690928186530107912 ~2008
1985241539397048307910 ~2004
1985380763397076152710 ~2004
19853987771191239266311 ~2005
1985428583397085716710 ~2004
198543866912309719747912 ~2007
1985459783397091956710 ~2004
1985490779397098155910 ~2004
1985606099397121219910 ~2004
Exponent Prime Factor Digits Year
1985609471397121894310 ~2004
1985616791397123358310 ~2004
1985644679397128935910 ~2004
1985645111397129022310 ~2004
19857342591588587407311 ~2005
19860701092780498152711 ~2006
1986137291397227458310 ~2004
1986151691397230338310 ~2004
1986201611397240322310 ~2004
19864385991589150879311 ~2005
19864726811191883608711 ~2005
1986524003397304800710 ~2004
1986712631397342526310 ~2004
1986788123397357624710 ~2004
1986842843397368568710 ~2004
19868758371192125502311 ~2005
19869001971589520157711 ~2005
1986948563397389712710 ~2004
1986966599397393319910 ~2004
19871157771589692621711 ~2005
1987169399397433879910 ~2004
19872410897948964356111 ~2007
19873803471589904277711 ~2005
1987506743397501348710 ~2004
1987585343397517068710 ~2004
3722
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25-04-13