Home e-mail
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
9875171790013698
9875323987532318 ~1987
9875357592521438 ~1987
9875821592549278 ~1987
9875917592555038 ~1987
98762892172783599 ~1988
9876437592586238 ~1987
9876623197532478 ~1986
9876701592602078 ~1987
9876803197536078 ~1986
9876851197537038 ~1986
9876857592611438 ~1987
98769011580304179 ~1988
9877151197543038 ~1986
9877633592657998 ~1987
9877667790213378 ~1987
9877811197556238 ~1986
9878257592695438 ~1987
9878903197578078 ~1986
9878923987892318 ~1987
9879179197583598 ~1986
9879277592756638 ~1987
9879817592789038 ~1987
9880421790433698 ~1987
9880601790448098 ~1987
Exp. Prime Factor Digits Year
9881279197625598 ~1986
9881381592882878 ~1987
9881611988161118 ~1987
9881741592904478 ~1987
9881951197639038 ~1986
9881999790559938 ~1987
9882073592924398 ~1987
9882371197647438 ~1986
9882773592966398 ~1987
9882863197657278 ~1986
98830672371936099 ~1988
98831172964935119 ~1988
9883151197663038 ~1986
9883283197665678 ~1986
98835671581370739 ~1988
9883633593017998 ~1987
9883877593032638 ~1987
9883883197677678 ~1986
9884051197681038 ~1986
9884117593047038 ~1987
9884557593073438 ~1987
9884663197693278 ~1986
9884713593082798 ~1987
9884783197695678 ~1986
9884893593093598 ~1987
Exp. Prime Factor Digits Year
9884999197699998 ~1986
9884999160136983910
9885077593104638 ~1987
9885203197704078 ~1986
9885437790834978 ~1987
9885611197712238 ~1986
9885637593138238 ~1987
9885901593154078 ~1987
98861991779515839 ~1988
9886451197729038 ~1986
9886559197731198 ~1986
9886601593196078 ~1987
9886649790931938 ~1987
9886837593210238 ~1987
98871075734522079 ~1989
9887441790995298 ~1987
98876117119079939 ~1989
98880892373141379 ~1988
9888239197764798 ~1986
9888479197769598 ~1986
9888547988854718 ~1987
98887731384428239 ~1988
9888803197776078 ~1986
98890135537847299 ~1989
98890372373368899 ~1988
Exp. Prime Factor Digits Year
9889151197783038 ~1986
9889331197786638 ~1986
9889417593365038 ~1987
9889559197791198 ~1986
9889811197796238 ~1986
9889843988984318 ~1987
9889889791191138 ~1987
9890057593403438 ~1987
9890081593404878 ~1987
98901832571447599 ~1988
9890341306600571110 ~1991
9890579197811598 ~1986
9890603197812078 ~1986
9890663197813278 ~1986
9890899989089918 ~1987
98909812967294319 ~1988
9891041593462478 ~1987
9891239197824798 ~1986
9891383197827678 ~1986
9891601593496078 ~1987
9891923197838478 ~1986
9892013593520798 ~1987
9892019791361538 ~1987
9892073593524398 ~1987
9892153593529198 ~1987
Home
4.903.097 digits
e-mail
25-07-08