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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
19694351393887038 ~1988
19694651393893038 ~1988
19694663393893278 ~1988
196948132757273839 ~1990
196950171181701039 ~1989
19695083393901678 ~1988
196952711969527119 ~1990
196957911575663299 ~1989
19696139393922798 ~1988
196961771181770639 ~1989
19696403393928078 ~1988
19696499393929998 ~1988
196965531181793199 ~1989
196968791969687919 ~1990
19697123393942478 ~1988
196973931181843599 ~1989
19697831393956638 ~1988
196979411181876479 ~1989
196981371181888239 ~1989
19698179393963598 ~1988
196985091575880739 ~1989
19698599393971998 ~1988
19699259393985198 ~1988
19699391393987838 ~1988
19699763393995278 ~1988
Exponent Prime Factor Digits Year
19700699394013998 ~1988
19700711394014238 ~1988
197015873546285679 ~1990
19701659394033198 ~1988
197017071576136579 ~1989
197018219456874099 ~1991
197022531182135199 ~1989
19702811394056238 ~1988
19703063394061278 ~1988
19703219394064398 ~1988
19703291394065838 ~1988
19703483394069678 ~1988
19703543394070878 ~1988
19703639394072798 ~1988
19704059394081198 ~1988
19704323394086478 ~1988
197046731182280399 ~1989
197048636305556179 ~1991
19704983394099678 ~1988
197051171182307039 ~1989
19705139394102798 ~1988
19705391394107838 ~1988
197054171182325039 ~1989
197057091576456739 ~1989
19706003394120078 ~1988
Exponent Prime Factor Digits Year
19706231394124638 ~1988
197065491576523939 ~1989
19706579394131598 ~1988
19706639394132798 ~1988
19707119394142398 ~1988
197073234729757539 ~1991
197074394729785379 ~1991
197079771182478639 ~1989
197082611182495679 ~1989
197083731182502399 ~1989
19708511394170238 ~1988
19708523394170478 ~1988
19708583394171678 ~1988
19708883394177678 ~1988
19708889390236002310 ~1993
19708943394178878 ~1988
19709219394184398 ~1988
19709303394186078 ~1988
197094611182567679 ~1989
197096171182577039 ~1989
19710059394201198 ~1988
197100591576804739
19710611394212238 ~1988
19710863394217278 ~1988
19710959394219198 ~1988
Exponent Prime Factor Digits Year
197113971182683839 ~1989
19711403394228078 ~1988
19712351394247038 ~1988
19712383224721166310 ~1992
197127835125323599 ~1991
19712879394257598 ~1988
19712939394258798 ~1988
19713143394262878 ~1988
197131731182790399 ~1989
19713719394274398 ~1988
197137191577097539
19713899394277998 ~1988
19714043394280878 ~1988
19714199394283998 ~1988
19714283394285678 ~1988
19714763394295278 ~1988
19714811394296238 ~1988
19715159394303198 ~1988
197153273548758879 ~1990
197154011182924079 ~1989
19715651394313038 ~1988
19715963394319278 ~1988
197160171182961039 ~1989
197169891577359139 ~1989
197170673549072079 ~1990
1467
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25-12-14