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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 Dig. Year
397943356317958867126311 ~2014
397956527637959130552711 ~2014
397958619717959172394311 ~2014
397972849317959456986311 ~2014
397980145797959602915911 ~2014
3979832951323878997707912 ~2015
397986026637959720532711 ~2014
397992975237959859504711 ~2014
398013890037960277800711 ~2014
398045040117960900802311 ~2014
398067737637961354752711 ~2014
3980715070731845720565712 ~2015
3980812657323884875943912 ~2015
398085382197961707643911 ~2014
398089990197961799803911 ~2014
398119909797962398195911 ~2014
398147889117962957782311 ~2014
398152579317963051586311 ~2014
398173846197963476923911 ~2014
398189701437963794028711 ~2014
398220980517964419610311 ~2014
398233781517964675630311 ~2014
398237599317964751986311 ~2014
3982405245139824052451112 ~2016
3982411022931859288183312 ~2015
Exponent Prime Factor Dig. Year
398246329797964926595911 ~2014
3982688710339826887103112 ~2016
3982706782339827067823112 ~2016
398289311397965786227911 ~2014
398302029597966040591911 ~2014
398329399317966587986311 ~2014
398350025037967000500711 ~2014
398366698197967333963911 ~2014
398371443117967428862311 ~2014
398380813797967616275911 ~2014
398382430197967648603911 ~2014
398386287597967725751911 ~2014
398387997717967759954311 ~2014
398409242291148...12823916 2026
398426008797968520175911 ~2014
3984515053131876120424912 ~2015
398454733797969094675911 ~2014
398465110317969302206311 ~2014
398467427037969348540711 ~2014
398500836717970016734311 ~2014
398527574637970551492711 ~2014
398537541597970750831911 ~2014
398543270397970865407911 ~2014
398575732197971514643911 ~2014
398592959997971859199911 ~2014
Exponent Prime Factor Dig. Year
3986152687723916916126312 ~2015
398619143637972382872711 ~2014
398619339717972386794311 ~2014
398627355717972547114311 ~2014
398634810717972696214311 ~2014
398636538717972730774311 ~2014
3986638398123919830388712 ~2015
398672161437973443228711 ~2014
3987264613387719821492712 ~2016
3987335087931898680703312 ~2015
398743819317974876386311 ~2014
3987483459139874834591112 ~2016
398759789037975195780711 ~2014
398779003797975580075911 ~2014
3987846185931902769487312 ~2015
398800166397976003327911 ~2014
3988138419723928830518312 ~2015
398840006997976800139911 ~2014
398840683317976813666311 ~2014
398862198237977243964711 ~2014
398870290797977405815911 ~2014
398878725237977574504711 ~2014
398934381117978687622311 ~2014
398934895797978697915911 ~2014
398953914237979078284711 ~2014
Exponent Prime Factor Dig. Year
398954810397979096207911 ~2014
398959375317979187506311 ~2014
398980434597979608691911 ~2014
3989811736131918493888912 ~2015
398981783997979635679911 ~2014
3989834182731918673461712 ~2015
399025096317980501926311 ~2014
3990317413939903174139112 ~2016
399036657717980733154311 ~2014
399038989437980779788711 ~2014
399040583037980811660711 ~2014
3990427757323942566543912 ~2015
399042794037980855880711 ~2014
399050461197981009223911 ~2014
399058140237981162804711 ~2014
399064992117981299842311 ~2014
3990910984123945465904712 ~2015
399093720597981874411911 ~2014
399094751637981895032711 ~2014
399118059117982361182311 ~2014
399119318037982386360711 ~2014
399128085977463...07639114 2023
3991359625731930877005712 ~2015
399138862317982777246311 ~2014
399168685317983373706311 ~2014
5157
GIMPS The Prime Pages FactorDb.com
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26-02-08