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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
1255945283251189056710 ~2002
1256051903251210380710 ~2002
12560958732009753396911 ~2004
1256160371251232074310 ~2002
1256201339251240267910 ~2002
1256208419251241683910 ~2002
1256248633753749179910 ~2003
12562888332010062132911 ~2004
12562980897789048151911 ~2006
1256299673753779803910 ~2003
12563305671005064453711 ~2004
1256430419251286083910 ~2002
12564305511005144440911 ~2004
1256479151251295830310 ~2002
1256481623251296324710 ~2002
1256497139251299427910 ~2002
1256527403251305480710 ~2002
12565276671005222133711 ~2004
1256579399251315879910 ~2002
1256583323251316664710 ~2002
12565906791005272543311 ~2004
1256607239251321447910 ~2002
1256645843251329168710 ~2002
12566567773015976264911 ~2005
1256668691251333738310 ~2002
Exponent Prime Factor Digits Year
1256672003251334400710 ~2002
12567196491759407508711 ~2004
1256723411251344682310 ~2002
1256746397754047838310 ~2003
1256786231251357246310 ~2002
1256788777754073266310 ~2003
1256858353754115011910 ~2003
12570155111257015511111 ~2004
1257020711251404142310 ~2002
12570482091005638567311 ~2004
1257088691251417738310 ~2002
12571623173017189560911 ~2005
1257181259251436251910 ~2002
12571865591257186559111 ~2004
12572065071005765205711 ~2004
1257239099251447819910 ~2002
1257270923251454184710 ~2002
1257279899251455979910 ~2002
1257328703251465740710 ~2002
1257353221754411932710 ~2003
1257365111251473022310 ~2002
1257399683251479936710 ~2002
1257408863251481772710 ~2002
1257410123251482024710 ~2002
1257482183251496436710 ~2002
Exponent Prime Factor Digits Year
125757439318863615895112 ~2007
1257575003251515000710 ~2002
1257577457754546474310 ~2003
1257623219251524643910 ~2002
1257635363251527072710 ~2002
1257754871251550974310 ~2002
1257777743251555548710 ~2002
1257810017754686010310 ~2003
1257867959251573591910 ~2002
12578859318302047144711 ~2006
125792942951323520703312 ~2008
1257941099251588219910 ~2002
1258019123251603824710 ~2002
1258046351251609270310 ~2002
1258051477754830886310 ~2003
1258080997754848598310 ~2003
12581018211006481456911 ~2004
1258136111251627222310 ~2002
1258139437754883662310 ~2003
1258146371251629274310 ~2002
1258150319251630063910 ~2002
12581657516039195604911 ~2005
1258194961754916976710 ~2003
1258198163251639632710 ~2002
1258232219251646443910 ~2002
Exponent Prime Factor Digits Year
1258237283251647456710 ~2002
1258311143251662228710 ~2002
1258322423251664484710 ~2002
12584190173775257051111 ~2005
12585505332013680852911 ~2004
1258575359251715071910 ~2002
12585988673020637280911 ~2005
12586286633272434523911 ~2005
12586307992265535438311 ~2004
1258634759251726951910 ~2002
1258642571251728514310 ~2002
1258664413755198647910 ~2003
1258676123251735224710 ~2002
12586761311258676131111 ~2004
12587485071006998805711 ~2004
12587523714028007587311 ~2005
1258756451251751290310 ~2002
1258819643251763928710 ~2002
1258901999251780399910 ~2002
1258934437755360662310 ~2003
1258953551251790710310 ~2002
12589653191258965319111 ~2004
1259007353755404411910 ~2003
1259018279251803655910 ~2002
12591535371762814951911 ~2004
3577
GIMPS The Prime Pages FactorDb.com
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25-05-04