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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
988952415933714479 ~1995
989029431978058879 ~1993
989051391978102799 ~1993
989072991978145999 ~1993
989103591978207199 ~1993
989143519891435119 ~1995
989179191978358399 ~1993
989179917913439299 ~1995
989180031978360079 ~1993
989182431978364879 ~1993
989194399891943919 ~1995
989209311978418639 ~1993
989218431978436879 ~1993
989255511978511039 ~1993
989258991978517999 ~1993
989266977914135779 ~1995
989278911978557839 ~1993
989287575935725439 ~1995
989319711978639439 ~1993
989327031978654079 ~1993
989373231978746479 ~1993
989402535936415199 ~1995
989409111978818239 ~1993
989416317915330499 ~1995
989421535936529199 ~1995
Exponent Prime Factor Digits Year
989430111978860239 ~1993
989430831978861679 ~1993
989445111978890239 ~1993
989471815936830879 ~1995
989554215937325279 ~1995
989595415937572479 ~1995
989596311979192639 ~1993
989601591979203199 ~1993
989640831979281679 ~1993
989665191979330399 ~1993
98967949237523077710 ~1996
989697231979394479 ~1993
989715831979431679 ~1993
989757711979515439 ~1993
989762031979524079 ~1993
989763415938580479 ~1995
989776911979553839 ~1993
989790111979580239 ~1993
989814231979628479 ~1993
989834815939008879 ~1995
98985947494929735110 ~1997
98987789138582904710 ~1995
989879391979758799 ~1993
98995993712771149710 ~1997
989991799899917919 ~1995
Exponent Prime Factor Digits Year
990000591980001199 ~1993
990039591980079199 ~1993
99003973217808740710 ~1996
990052791980105599 ~1993
990058135940348799 ~1995
990085879900858719 ~1995
990127791980255599 ~1993
990136791980273599 ~1993
990137511980275039 ~1993
990138231980276479 ~1993
990140391980280799 ~1993
990148791980297599 ~1993
990151815940910879 ~1995
990169791980339599 ~1993
990251631980503279 ~1993
990259911980519839 ~1993
990278991980557999 ~1993
990282831980565679 ~1993
990286791980573599 ~1993
990306711980613439 ~1993
990336111980672239 ~1993
99033749475361995310 ~1997
990367375942204239 ~1995
990376191980752399 ~1993
990399111980798239 ~1993
Exponent Prime Factor Digits Year
990421735942530399 ~1995
990445311980890639 ~1993
990447231980894479 ~1993
990525111981050239 ~1993
99054421217919726310 ~1996
990566215943397279 ~1995
990573231981146479 ~1993
99058067257550974310 ~1996
990630535943783199 ~1995
990631791981263599 ~1993
99065293297195879110 ~1996
99068041217949690310 ~1996
990686631981373279 ~1993
990704031981408079 ~1993
990728239907282319 ~1995
990833991981667999 ~1993
990837231981674479 ~1993
990880911981761839 ~1993
990886815945320879 ~1995
990904015945424079 ~1995
990924591981849199 ~1993
990935391981870799 ~1993
990940311981880639 ~1993
990948831981897679 ~1993
99095449237829077710 ~1996
2401
GIMPS The Prime Pages FactorDb.com
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25-04-13