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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
97657932148474479 ~1988
97661931367267039 ~1988
9766909226592288910 ~1991
9766951976695118 ~1987
9767291195345838 ~1986
9767413586044798 ~1987
9767581586054878 ~1987
97676292344230979 ~1988
9767677586060638 ~1987
9767711195354238 ~1986
9767827976782718 ~1987
9767903195358078 ~1986
9768233586093998 ~1987
9768329781466338 ~1987
9768431195368638 ~1986
9768443195368878 ~1986
9768449781475938 ~1987
9768509781480738 ~1987
97688232344517539 ~1988
9768883971026970310 ~1992
9768971195379438 ~1986
97689713126070739
97690071758421279 ~1988
9769139195382798 ~1986
9769139781531138
Exp. Prime Factor Digits Year
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
97737232345693539 ~1988
9773747781899778 ~1987
97739472345747299 ~1988
Exp. Prime Factor Digits Year
97741975473550339 ~1989
9774361586461678 ~1987
9774397586463838 ~1987
9774497586469838 ~1987
9774893586493598 ~1987
97751691368523679 ~1988
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
97782972346791299 ~1988
9778651977865118 ~1987
Exp. Prime Factor Digits Year
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
9781997342369895110 ~1991
97826234108701679 ~1989
9782779978277918 ~1987
97830139391692499 ~1990
1054
GIMPS The Prime Pages FactorDb.com
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26-04-05