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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
3987846185931902769487312 ~2015
398800166397976003327911 ~2014
3988138419723928830518312 ~2015
398840006997976800139911 ~2014
398840683317976813666311 ~2014
398862198237977243964711 ~2014
398870290797977405815911 ~2014
398878725237977574504711 ~2014
398934381117978687622311 ~2014
398934895797978697915911 ~2014
398953914237979078284711 ~2014
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
Exponent Prime Factor Dig. Year
399058140237981162804711 ~2014
399064992117981299842311 ~2014
3990910984123945465904712 ~2015
399093720597981874411911 ~2014
399118059117982361182311 ~2014
399119318037982386360711 ~2014
399128085977463...07639114 2023
3991359625731930877005712 ~2015
399138862317982777246311 ~2014
3991839132123951034792712 ~2015
399210346197984206923911 ~2014
399245185197984903703911 ~2014
3992576689323955460135912 ~2015
399286909797985738195911 ~2014
399304596237986091924711 ~2014
399322588197986451763911 ~2014
3993262081723959572490312 ~2015
399328637037986572740711 ~2014
3993315695323959894171912 ~2015
399341674317986833486311 ~2014
399370325997987406519911 ~2014
399423332397988466647911 ~2014
3994342087323966052523912 ~2015
399444602397988892047911 ~2014
3994476684739944766847112 ~2016
Exponent Prime Factor Dig. Year
399458357637989167152711 ~2014
3994729741323968378447912 ~2015
399480621237989612424711 ~2014
399485431917989708638311 ~2014
399498195237989963904711 ~2014
3995342544123972055264712 ~2015
399566553837991331076711 ~2014
399572819997991456399911 ~2014
399609107997992182159911 ~2014
399615173997992303479911 ~2014
399670090317993401806311 ~2014
399693862917993877258311 ~2014
3997124909355959748730312 ~2016
399719172597994383451911 ~2014
399737532717994750654311 ~2014
399747403917994948078311 ~2014
399749510397994990207911 ~2014
3998161559323988969355912 ~2015
399816432117996328642311 ~2014
399826407237996528144711 ~2014
3998314333723989886002312 ~2015
399831989037996639780711 ~2014
399849570117996991402311 ~2014
3998496253363975940052912 ~2016
3998519923723991119542312 ~2015
Exponent Prime Factor Dig. Year
399857379837997147596711 ~2014
399867713517997354270311 ~2014
399868025997997360519911 ~2014
399882151917997643038311 ~2014
399883827237997676544711 ~2014
399889623117997792462311 ~2014
399913842597998276851911 ~2014
399985409517999708190311 ~2014
399991359597999827191911 ~2014
399992336997999846739911 ~2014
3999939644931999517159312 ~2015
4000195591324001173547912 ~2015
4000569501172010251019912 ~2016
400062366598001247331911 ~2014
400076127598001522551911 ~2014
400103029198002060583911 ~2014
400115826598002316531911 ~2014
400116989998002339799911 ~2014
400123016038002460320711 ~2014
400129035238002580704711 ~2014
4001630251940016302519112 ~2016
4001777746340017777463112 ~2016
400200115198004002303911 ~2014
400205784598004115691911 ~2014
4002078499732016627997712 ~2015
4703
GIMPS The Prime Pages FactorDb.com
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25-06-01