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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.
Exp. Prime Factor Digits Year
6378767510301378 ~1986
6378781382726878 ~1985
6379049893066878 ~1986
6379091127581838 ~1984
6379237382754238 ~1985
6379283127585678 ~1984
6379531637953118 ~1986
6379819637981918 ~1986
6379883127597678 ~1984
6380027510402178 ~1986
6380161382809678 ~1985
6380263638026318 ~1986
6380497382829838 ~1985
6381059127621198 ~1984
6381077510486178 ~1986
6381217382873038 ~1985
6381251510500098 ~1986
6381299127625998 ~1984
6381337382880238 ~1985
6381497382889838 ~1985
6381671127633438 ~1984
6381719510537538 ~1986
6381863127637278 ~1984
6382073382924398 ~1985
6382139510571138 ~1986
Exp. Prime Factor Digits Year
6382151127643038 ~1984
6382199510575938 ~1986
6382469510597538 ~1986
6382583127651678 ~1984
6382699638269918 ~1986
6382811510624898 ~1986
6382951638295118 ~1986
6383261382995678 ~1985
6383287638328718 ~1986
6383317382999038 ~1985
6383453383007198 ~1985
63836091532066179 ~1987
6383621383017278 ~1985
63838934468725119 ~1988
6384359127687198 ~1984
6384619638461918 ~1986
6385117383107038 ~1985
6385399638539918 ~1986
6385733383143998 ~1985
6385739510859138 ~1986
63857411021718579 ~1986
6385751127715038 ~1984
6385859127717198 ~1984
6385997383159838 ~1985
63867491405084799 ~1987
Exp. Prime Factor Digits Year
63870412427075599 ~1987
63870612938048079 ~1987
6387131510970498 ~1986
6387383127747678 ~1984
6387413383244798 ~1985
6387961383277678 ~1985
6387977511038178 ~1986
6388337511066978 ~1986
6388391127767838 ~1984
6388607511088578 ~1986
6388691127773838 ~1984
6388819638881918 ~1986
6388973383338398 ~1985
6389021511121698 ~1986
6389083638908318 ~1986
6389177894484798 ~1986
6389213383352798 ~1985
63897713578271779 ~1988
6389783127795678 ~1984
6389819127796398 ~1984
6390257383415438 ~1985
6390499639049918 ~1986
6390551127811038 ~1984
6390569894679678 ~1986
63908513067608499 ~1988
Exp. Prime Factor Digits Year
6391043127820878 ~1984
6391199511295938 ~1986
6391241383474478 ~1985
63912612556504419 ~1987
6391559127831198 ~1984
63917291406180399 ~1987
63918371022693939 ~1986
6391841511347298 ~1986
6391901383514078 ~1985
63919272173255199 ~1987
6392003127840078 ~1984
6392053383523198 ~1985
6392339511387138 ~1986
6392497383549838 ~1985
6392651127853038 ~1984
6393059127861198 ~1984
6393131511450498 ~1986
6393281383596878 ~1985
63932815114624819
6393461383607678 ~1985
6393599511487938 ~1986
6393787639378718 ~1986
6393857511508578 ~1986
6393911127878238 ~1984
6393917383635038 ~1985
799
GIMPS The Prime Pages FactorDb.com
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25-09-07