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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
556298631112597279 ~1991
556299111112598239 ~1991
556310391112620799 ~1991
556311111112622239 ~1991
55631161122388554310 ~1994
556313511112627039 ~1991
556314733337888399 ~1993
556326111112652239 ~1991
55634617433950012710 ~1995
55635061166905183110 ~1994
556359894450879139 ~1993
55636187267053697710 ~1995
556369573338217439 ~1993
556373631112747279 ~1991
556389111112778239 ~1991
556397631112795279 ~1991
556409991112819999 ~1991
556415631112831279 ~1991
556426674451413379 ~1993
556436391112872799 ~1991
556439331780605856111 ~1997
556443111112886239 ~1991
556445511112891039 ~1991
55644937222579748110 ~1995
556455711112911439 ~1991
Exponent Prime Factor Digits Year
556456794451654339 ~1993
556461413338768479 ~1993
556466631112933279 ~1991
556469094451752739 ~1993
556486791112973599 ~1991
556495431112990879 ~1991
556511533339069199 ~1993
556514511113029039 ~1991
556523511113047039 ~1991
55652447311653703310 ~1995
556571031113142079 ~1991
556594311113188639 ~1991
55659437979606091310 ~1996
55660387189245315910 ~1995
556608591113217199 ~1991
556615311113230639 ~1991
556623533339741199 ~1993
556627311113254639 ~1991
556643514453148099 ~1993
556660431113320879 ~1991
556661391113322799 ~1991
556668133340008799 ~1993
556674773340048639 ~1993
556679514453436099 ~1993
556681431113362879 ~1991
Exponent Prime Factor Digits Year
556690494453523939 ~1993
556699791113399599 ~1991
556703391113406799 ~1991
556722831113445679 ~1991
556766391113532799 ~1991
556777813340666879 ~1993
55678297133627912910 ~1994
556787391113574799 ~1991
556789791113579599 ~1991
556805631113611279 ~1991
556809591113619199 ~1991
55681063356358803310 ~1995
556812711113625439 ~1991
556813311113626639 ~1991
55681447100226604710 ~1994
55682147100227864710 ~1994
556822395568223919 ~1993
55682951100229311910 ~1994
556836711113673439 ~1991
556844391113688799 ~1991
556844573341067439 ~1993
556845231113690479 ~1991
556851533341109199 ~1993
556856813341140879 ~1993
556871991113743999 ~1991
Exponent Prime Factor Digits Year
556877391113754799 ~1991
556883173341299039 ~1993
556885133341310799 ~1993
556887711113775439 ~1991
556896591113793199 ~1991
556917594455340739 ~1993
556922937796921039 ~1994
556942791113885599 ~1991
556953711113907439 ~1991
556956831113913679 ~1991
556958031113916079 ~1991
55696621256204456710 ~1995
556971711113943439 ~1991
556973813341842879 ~1993
556975275569752719 ~1993
556981431113962879 ~1991
556985631113971279 ~1991
556998294455986339 ~1993
557000631114001279 ~1991
557020791114041599 ~1991
55704073356506067310 ~1995
557052111114104239 ~1991
557055373342332239 ~1993
557064294456514339 ~1993
557066991114133999 ~1991
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25-10-20