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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
1294370039258874007910 ~2002
1294400981776640588710 ~2003
1294419443258883888710 ~2002
12944832735954623055911 ~2005
1294496471258899294310 ~2002
1294501139258900227910 ~2002
1294524683258904936710 ~2002
12945433013883629903111 ~2005
1294574591258914918310 ~2002
1294633871258926774310 ~2002
1294637339258927467910 ~2002
1294654103258930820710 ~2002
1294654799258930959910 ~2002
1294670831258934166310 ~2002
1294687211258937442310 ~2002
1294694039258938807910 ~2002
1294698719258939743910 ~2002
1294741391258948278310 ~2002
1294746539258949307910 ~2002
1294853723258970744710 ~2002
1294866563258973312710 ~2002
1294912319258982463910 ~2002
1294983251258996650310 ~2002
1295012819259002563910 ~2002
12950620734144198633711 ~2005
Exponent Prime Factor Digits Year
1295072041777043224710 ~2003
1295079059259015811910 ~2002
1295160791259032158310 ~2002
1295163119259032623910 ~2002
12951675911295167591111 ~2004
12951928973108462952911 ~2005
12952440171036195213711 ~2004
1295248919259049783910 ~2002
1295259419259051883910 ~2002
1295282903259056580710 ~2002
1295298131259059626310 ~2002
1295374631259074926310 ~2002
1295382533777229519910 ~2003
12953865835440623648711 ~2005
12954546471036363717711 ~2004
1295615099259123019910 ~2002
1295661061777396636710 ~2003
1295664203259132840710 ~2002
1295667311259133462310 ~2002
1295714363259142872710 ~2002
1295718251259143650310 ~2002
1295801411259160282310 ~2002
12958274871036661989711 ~2004
1295830043259166008710 ~2002
1295876723259175344710 ~2002
Exponent Prime Factor Digits Year
1295897363259179472710 ~2002
12959143031295914303111 ~2004
1295930591259186118310 ~2002
1295948183259189636710 ~2002
1295984141777590484710 ~2003
1296040979259208195910 ~2002
1296046421777627852710 ~2003
1296069191259213838310 ~2002
1296094379259218875910 ~2002
1296100271259220054310 ~2002
1296131693777679015910 ~2003
1296187897777712738310 ~2003
1296241283259248256710 ~2002
1296298079259259615910 ~2002
1296388979259277795910 ~2002
1296427961777856776710 ~2003
1296435839259287167910 ~2002
1296490271259298054310 ~2002
12965044911037203592911 ~2004
1296511823259302364710 ~2002
1296544451259308890310 ~2002
1296575963259315192710 ~2002
1296584363259316872710 ~2002
1296604091259320818310 ~2002
1296697043259339408710 ~2002
Exponent Prime Factor Digits Year
1296708299259341659910 ~2002
12967461894149587804911 ~2005
1296793343259358668710 ~2002
1296793931259358786310 ~2002
1296802163259360432710 ~2002
12968426991037474159311 ~2004
1296883223259376644710 ~2002
12969083691037526695311 ~2004
1296915551259383110310 ~2002
1296916393778149835910 ~2003
1296925583259385116710 ~2002
12969604371037568349711 ~2004
12970071671297007167111 ~2004
1297010063259402012710 ~2002
1297039511259407902310 ~2002
1297085651259417130310 ~2002
1297183403259436680710 ~2002
1297199219259439843910 ~2002
1297218683259443736710 ~2002
1297231739259446347910 ~2002
12972920115448626446311 ~2005
1297364357778418614310 ~2003
1297382699259476539910 ~2002
1297383383259476676710 ~2002
1297418519259483703910 ~2002
3589
GIMPS The Prime Pages FactorDb.com
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25-05-04