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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
1258819643251763928710 ~2002
1258901999251780399910 ~2002
1258934437755360662310 ~2003
1258953551251790710310 ~2002
12589653191258965319111 ~2004
1259007353755404411910 ~2003
1259018279251803655910 ~2002
12591535371762814951911 ~2004
1259155151251831030310 ~2002
1259180963251836192710 ~2002
1259187313755512387910 ~2003
1259208877755525326310 ~2003
12592149897807132931911 ~2006
1259253491251850698310 ~2002
12592733471259273347111 ~2004
1259284199251856839910 ~2002
1259302223251860444710 ~2002
1259388461755633076710 ~2003
1259433359251886671910 ~2002
1259443859251888771910 ~2002
1259451551251890310310 ~2002
1259504171251900834310 ~2002
1259554097755732458310 ~2003
1259585699251917139910 ~2002
1259586803251917360710 ~2002
Exponent Prime Factor Digits Year
1259588651251917730310 ~2002
12596084511007686760911 ~2004
12596133716046144180911 ~2005
1259638091251927618310 ~2002
1259655263251931052710 ~2002
12596700171763538023911 ~2004
12597041532015526644911 ~2004
1259743777755846266310 ~2003
1259855141755913084710 ~2003
1259973779251994755910 ~2002
1260024599252004919910 ~2002
1260053699252010739910 ~2002
12600734711260073471111 ~2004
1260102479252020495910 ~2002
1260114431252022886310 ~2002
1260191879252038375910 ~2002
1260195479252039095910 ~2002
1260210443252042088710 ~2002
1260222959252044591910 ~2002
1260240743252048148710 ~2002
1260246731252049346310 ~2002
1260294011252058802310 ~2002
1260297323252059464710 ~2002
12603113292772684923911 ~2005
1260366623252073324710 ~2002
Exponent Prime Factor Digits Year
12604816311008385304911 ~2004
12604819311008385544911 ~2004
12605681571008454525711 ~2004
12606508191008520655311 ~2004
1260663863252132772710 ~2002
1260679163252135832710 ~2002
1260684059252136811910 ~2002
1260692483252138496710 ~2002
1260704183252140836710 ~2002
1260731051252146210310 ~2002
1260776057756465634310 ~2003
1260816077756489646310 ~2003
1260836039252167207910 ~2002
1260856199252171239910 ~2002
1260914051252182810310 ~2002
1260951683252190336710 ~2002
1260976331252195266310 ~2002
1261052951252210590310 ~2002
12611119273026668624911 ~2005
1261134863252226972710 ~2002
1261176023252235204710 ~2002
126121208945403635204112 ~2008
1261217201756730320710 ~2003
1261266473756759883910 ~2003
12612740991009019279311 ~2004
Exponent Prime Factor Digits Year
1261277939252255587910 ~2002
1261284721756770832710 ~2003
1261346363252269272710 ~2002
1261395491252279098310 ~2002
1261396217756837730310 ~2003
1261414751252282950310 ~2002
1261534619252306923910 ~2002
1261561883252312376710 ~2002
1261585859252317171910 ~2002
1261589963252317992710 ~2002
1261639943252327988710 ~2002
1261656911252331382310 ~2002
1261672283252334456710 ~2002
1261705631252341126310 ~2002
1261717001757030200710 ~2003
1261740251252348050310 ~2002
1261760039252352007910 ~2002
1261817339252363467910 ~2002
1261838603252367720710 ~2002
1261840799252368159910 ~2002
1261868963252373792710 ~2002
1261893371252378674310 ~2002
1261898531252379706310 ~2002
12618994131766659178311 ~2004
1261900103252380020710 ~2002
3935
GIMPS The Prime Pages FactorDb.com
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26-02-08