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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
25545983510919678 ~1989
25546379510927598 ~1989
255468171532809039 ~1990
25546919510938398 ~1989
25546931510938638 ~1989
25547003510940078 ~1989
25547239735760483310 ~1994
25547339510946798 ~1989
25547663510953278 ~1989
25547843510956878 ~1989
25548839510976798 ~1989
25549571510991438 ~1989
25550951511019038 ~1989
25551191511023838 ~1989
25551299511025998 ~1989
255520811533124879 ~1990
25552223511044478 ~1989
25552679511053598 ~1989
255528432555284319 ~1991
255534971533209839 ~1990
25553663511073278 ~1989
25554443511088878 ~1989
25554779511095598 ~1989
25554839511096798 ~1989
25555151511103038 ~1989
Exponent Prime Factor Digits Year
255553672044429379 ~1990
25555499511109998 ~1989
25556543511130878 ~1989
255566472555664719 ~1991
25556879511137598 ~1989
25557011511140238 ~1989
25557599511151998 ~1989
25557839511156798 ~1989
25557923511158478 ~1989
255579472044635779 ~1990
25557971511159438 ~1989
25558499511169998 ~1989
25558943511178878 ~1989
255595072044760579 ~1990
25559783511195678 ~1989
25559879511197598 ~1989
25560191511203838 ~1989
25560323511206478 ~1989
255603312556033119 ~1991
255607492044859939 ~1990
25560959511219198 ~1989
25561031511220638 ~1989
25561331511226638 ~1989
25561559511231198 ~1989
25562051511241038 ~1989
Exponent Prime Factor Digits Year
25562123511242478 ~1989
25563383511267678 ~1989
255635812045086499 ~1990
25563743511274878 ~1989
25563899511277998 ~1989
25564223511284478 ~1989
25564499511289998 ~1989
25564559511291198 ~1989
255647931533887599 ~1990
25565651511313038 ~1989
255659411533956479 ~1990
25566119511322398 ~1989
25566479511329598 ~1989
25566683511333678 ~1989
255669734090715699 ~1991
255672611534035679 ~1990
25568639511372798 ~1989
25568759511375198 ~1989
25568951511379038 ~1989
25569671511393438 ~1989
25570247122737185710 ~1992
25570463511409278 ~1989
255705773579880799 ~1991
25570631511412638 ~1989
255706731534240399 ~1990
Exponent Prime Factor Digits Year
25570739511414798 ~1989
255709436137026339 ~1991
25570991511419838 ~1989
25571879511437598 ~1989
255719112557191119 ~1991
255724672045797379 ~1990
25572611511452238 ~1989
25572671511453438 ~1989
25572719511454398 ~1989
25572731511454638 ~1989
25573043511460878 ~1989
25574903511498078 ~1989
255751131534506799 ~1990
25575611511512238 ~1989
25576283511525678 ~1989
25576703511534078 ~1989
25576871511537438 ~1989
25577003511540078 ~1989
25577099511541998 ~1989
25578071511561438 ~1989
25578083511561678 ~1989
25578263511565278 ~1989
25578431511568638 ~1989
25578517240438059910 ~1993
25578719511574398 ~1989
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25-04-13