Home e-mail
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
3956095919791219183910 ~2006
39561589812373695388711 ~2007
3956167931791233586310 ~2006
3956230139791246027910 ~2006
3956313479791262695910 ~2006
39563322172373799330311 ~2007
39564475979495474232911 ~2009
39565691599495765981711 ~2009
39566151372373969082311 ~2007
3956624363791324872710 ~2006
3956999471791399894310 ~2006
39571326673957132667111 ~2008
39573852772374431166311 ~2007
3957674603791534920710 ~2006
395774382153825315965712 ~2010
3957793751791558750310 ~2006
3957808391791561678310 ~2006
3957837623791567524710 ~2006
39579653873166372309711 ~2007
3958075931791615186310 ~2006
3958225151791645030310 ~2006
3958258679791651735910 ~2006
3958425539791685107910 ~2006
3958513763791702752710 ~2006
3958625351791725070310 ~2006
Exponent Prime Factor Digits Year
3958691003791738200710 ~2006
39588473713958847371111 ~2008
3958899179791779835910 ~2006
3958930799791786159910 ~2006
3958987271791797454310 ~2006
3959030051791806010310 ~2006
3959047019791809403910 ~2006
395917258710293848726312 ~2009
39591871013167349680911 ~2007
3959330579791866115910 ~2006
3959578079791915615910 ~2006
39596274077127329332711 ~2008
39596320932375779255911 ~2007
3959747399791949479910 ~2006
3959805719791961143910 ~2006
3960034439792006887910 ~2006
3960303383792060676710 ~2006
396031828130890482591912 ~2010
39603819772376229186311 ~2007
3960519863792103972710 ~2006
3960667019792133403910 ~2006
3960688943792137788710 ~2006
39613550597130439106311 ~2008
3961442879792288575910 ~2006
39614630877130633556711 ~2008
Exponent Prime Factor Digits Year
3961673003792334600710 ~2006
39616868532377012111911 ~2007
3961773383792354676710 ~2006
3961783211792356642310 ~2006
3961801139792360227910 ~2006
3961828679792365735910 ~2006
39618655973169492477711 ~2007
3961933259792386651910 ~2006
3962039423792407884710 ~2006
3962134139792426827910 ~2006
39622143313962214331111 ~2008
396226465337245287738312 ~2010
3962415959792483191910 ~2006
3962548679792509735910 ~2006
3962597291792519458310 ~2006
39626566793170125343311 ~2007
3962789639792557927910 ~2006
39630899513170471960911 ~2007
3963216671792643334310 ~2006
3963338663792667732710 ~2006
3963660359792732071910 ~2006
3963749519792749903910 ~2006
3963817043792763408710 ~2006
39638454412378307264711 ~2007
3963904751792780950310 ~2006
Exponent Prime Factor Digits Year
39643695972378621758311 ~2007
39644067793964406779111 ~2008
39649061572378943694311 ~2007
3964918103792983620710 ~2006
39649474732378968483911 ~2007
3965059391793011878310 ~2006
3965115083793023016710 ~2006
3965388851793077770310 ~2006
3965412023793082404710 ~2006
3965437439793087487910 ~2006
3965492579793098515910 ~2006
3965523899793104779910 ~2006
39656038612379362316711 ~2007
396569656972968816869712 ~2011
3965866763793173352710 ~2006
39662476999518994477711 ~2009
396633802921418225356712 ~2009
3966338423793267684710 ~2006
39663674873173093989711 ~2007
3966559559793311911910 ~2006
3966645731793329146310 ~2006
39670331572380219894311 ~2007
3967083839793416767910 ~2006
3967356671793471334310 ~2006
3967399511793479902310 ~2006
4107
GIMPS The Prime Pages FactorDb.com
Home
4.933.056 digits 		e-mail
25-07-20