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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
97690071758421279 ~1988
9769139195382798 ~1986
9769139781531138
9769423976942318 ~1987
97695472344691299 ~1988
97697571367765999 ~1988
9770017586201038 ~1987
97702132344851139 ~1988
9770857586251438 ~1987
9770911977091118 ~1987
9770951195419038 ~1986
9771119195422398 ~1986
9771119781689538
9771143195422878 ~1986
9771539195430798 ~1986
9771613586296798 ~1987
9771767781741378 ~1987
9771857586311438 ~1987
9772019195440398 ~1986
9772211195444238 ~1986
97724871759047679 ~1988
9772519977251918 ~1987
9772601586356078 ~1987
9773171781853698 ~1987
9773639195472798 ~1986
Exp. Prime Factor Digits Year
97737232345693539 ~1988
9773747781899778 ~1987
97739472345747299 ~1988
97741975473550339 ~1989
9774361586461678 ~1987
9774397586463838 ~1987
9774497586469838 ~1987
9774893586493598 ~1987
9775219977521918 ~1987
9775583195511678 ~1986
9775637586538238 ~1987
9776159195523198 ~1986
9776293586577598 ~1987
9776303195526078 ~1986
97763411564214579 ~1988
9776369782109538 ~1987
9776471195529438 ~1986
9777223977722318 ~1987
9777661586659678 ~1987
9777671195553438 ~1986
9777883977788318 ~1987
97781272542313039 ~1988
9778211195564238 ~1986
9778253586695198 ~1987
9778259195565198 ~1986
Exp. Prime Factor Digits Year
97782972346791299 ~1988
9778651977865118 ~1987
9778913586734798 ~1987
9778943195578878 ~1986
9779039195580798 ~1986
9779537782362978 ~1987
9779579195591598 ~1986
9779633586777998 ~1987
97797794694293939 ~1989
9779857586791438 ~1987
9780203195604078 ~1986
9780377782430178 ~1987
9780539195610798 ~1986
9780553586833198 ~1987
9780581311022475910 ~1991
9780851782468098 ~1987
9781063978106318 ~1987
97811272543093039 ~1988
9781153586869198 ~1987
9781361782508898 ~1987
9781763195635278 ~1986
9781861586911678 ~1987
9781991195639838 ~1986
97826234108701679 ~1989
9782779978277918 ~1987
Exp. Prime Factor Digits Year
97830139391692499 ~1990
9783479195669598 ~1986
9783601587016078 ~1987
97836671565386739 ~1988
9784253587055198 ~1987
9784283195685678 ~1986
9784343195686878 ~1986
97844292152574399 ~1988
9784559195691198 ~1986
97847212935416319 ~1988
9784751195695038 ~1986
9784811195696238 ~1986
9784823195696478 ~1986
9785261782820898 ~1987
9785411195708238 ~1986
9785543195710878 ~1986
9785663195713278 ~1986
9785903195718078 ~1986
9786041587162478 ~1987
9786131195722638 ~1986
9786299195725998 ~1986
9786323195726478 ~1986
9786521587191278 ~1987
9786697587201838 ~1987
9786923195738478 ~1986
1022
GIMPS The Prime Pages FactorDb.com
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25-09-07