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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
12006671240133438 ~1986
12006781720406878 ~1987
12007223240144478 ~1986
120077592161396639 ~1989
12008099240161998 ~1986
12008261720495678 ~1987
120084191200841919 ~1988
12008471240169438 ~1986
120087975764222579 ~1990
12008999240179998 ~1986
12009421720565278 ~1987
12009443240188878 ~1986
12009551240191038 ~1986
12009779240195598 ~1986
12010079240201598 ~1986
12010169960813538 ~1988
12010241720614478 ~1987
12010769960861538 ~1988
12011183240223678 ~1986
12011617720697038 ~1987
12011711240234238 ~1986
12011903240238078 ~1986
120120371921925939 ~1988
12012131240242638 ~1986
12012491240249838 ~1986
Exponent Prime Factor Digits Year
12012743240254878 ~1986
12012971240259438 ~1986
12013091117728291910 ~1990
120130971681833599 ~1988
12013201720792078 ~1987
12013499240269998 ~1986
12013753720825198 ~1987
12013763240275278 ~1986
12013873720832398 ~1987
12014039240280798 ~1986
120142031201420319 ~1988
12014363240287278 ~1986
12014813720888798 ~1987
12015071240301438 ~1986
12015203240304078 ~1986
12015359240307198 ~1986
12015431240308638 ~1986
12015551240311038 ~1986
12015611240312238 ~1986
12015743240314878 ~1986
12015803240316078 ~1986
120159171682228399 ~1988
12016391240327838 ~1986
12016799240335998 ~1986
12016859240337198 ~1986
Exponent Prime Factor Digits Year
12017111240342238 ~1986
12017123240342478 ~1986
12017353721041198 ~1987
12017363240347278 ~1986
12017459240349198 ~1986
12017639240352798 ~1986
12018059240361198 ~1986
12018481721108878 ~1987
12018491240369838 ~1986
12018551240371038 ~1986
12019691240393838 ~1986
12020051961604098 ~1988
12020231240404638 ~1986
120219531683073439 ~1988
12021959240439198 ~1986
12022007961760578 ~1988
12022313721338798 ~1987
12022511240450238 ~1986
120226092644973999 ~1989
12022693721361598 ~1987
12023243240464878 ~1986
12023489961879138 ~1988
12023579240471598 ~1986
12023663240473278 ~1986
12023831240476638 ~1986
Exponent Prime Factor Digits Year
12024119240482398 ~1986
12024203240484078 ~1986
12024983240499678 ~1986
12025261721515678 ~1987
12025319240506398 ~1986
12025463240509278 ~1986
12026291240525838 ~1986
12026603240532078 ~1986
12027623240552478 ~1986
120277492886659779 ~1989
12027803240556078 ~1986
12027863240557278 ~1986
12028409962272738 ~1988
12028739240574798 ~1986
12028799240575998 ~1986
120292312165261599 ~1989
12029561721773678 ~1987
12029573721774398 ~1987
12029657721779438 ~1987
12029663240593278 ~1986
12029711240594238 ~1986
12029737721784238 ~1987
12029819240596398 ~1986
120304371684261199 ~1988
12030521721831278 ~1987
1109
GIMPS The Prime Pages FactorDb.com
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25-04-13