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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
10172483203449678 ~1986
10172497610349838 ~1987
101727171424180399 ~1988
10172759203455198 ~1986
101728011943004991111 ~1993
10172843203456878 ~1986
10173203203464078 ~1986
10173491203469838 ~1986
101737271017372719 ~1987
10174037610442238 ~1987
101740792441778979 ~1988
101742472441819299 ~1988
101742771424398799 ~1988
10174433610465998 ~1987
101745371627925939 ~1988
10174799203495998 ~1986
101748111831465999 ~1988
10174817610489038 ~1987
10174919203498398 ~1986
10174981610498878 ~1987
10174991203499838 ~1986
10175183203503678 ~1986
10175189814015138 ~1987
101751891424526479
101752391831543039 ~1988
Exponent Prime Factor Digits Year
101755793256185299 ~1989
10175861610551678 ~1987
10176059203521198 ~1986
10176121610567278 ~1987
10176653610599198 ~1987
10176791203535838 ~1986
10176917610615038 ~1987
10177031203540638 ~1986
10177093610625598 ~1987
10177361610641678 ~1987
10177379203547598 ~1986
10177397610643838 ~1987
10177613610656798 ~1987
10178111203562238 ~1986
10178657610719438 ~1987
10178717610723038 ~1987
10178933610735998 ~1987
10179161610749678 ~1987
101792871832271679 ~1988
10179557814364578 ~1987
101796794071871619 ~1989
10179781610786878 ~1987
10179803203596078 ~1986
101798575497122799 ~1989
10179901610794078 ~1987
Exponent Prime Factor Digits Year
101801292239628399 ~1988
10180451203609038 ~1986
10180601814448098 ~1987
10180673610840398 ~1987
10181057610863438 ~1987
10181159814492738 ~1987
10181399814511938 ~1987
10181597610895838 ~1987
10182239203644798 ~1986
101824932443798339 ~1988
10182563203651278 ~1986
10182581610954878 ~1987
10182617610957038 ~1987
10183571203671438 ~1986
10183973611038398 ~1987
10184039203680798 ~1986
10184243203684878 ~1986
101845792444298979 ~1988
10184591203691838 ~1986
10184807814784578 ~1987
10185011203700238 ~1986
10185359203707198 ~1986
10185443203708878 ~1986
10185493611129598 ~1987
10185611203712238 ~1986
Exponent Prime Factor Digits Year
10185683203713678 ~1986
10185779814862338 ~1987
10185977611158638 ~1987
101860131426041839 ~1988
101860211629763379 ~1988
10186301611178078 ~1987
10186331814906498 ~1987
101866631018666319 ~1987
10186811203736238 ~1986
10187123203742478 ~1986
101874911018749119 ~1987
10187519203750398 ~1986
10187711203754238 ~1986
10188071203761438 ~1986
10188317611299038 ~1987
10188851203777038 ~1986
101889071018890719 ~1987
101900278152021619 ~1990
10190171203803438 ~1986
10190333611419998 ~1987
10190639203812798 ~1986
10190641611438478 ~1987
10190801611448078 ~1987
10190903203818078 ~1986
101909272445822499 ~1988
1024
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25-05-04