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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
27779428371666765702311 ~2006
27782020032778202003111 ~2006
27782519992222601599311 ~2006
27783085792222646863311 ~2006
2778334283555666856710 ~2005
2778355091555671018310 ~2005
27784212531667052751911 ~2006
27784519992778451999111 ~2006
2778457043555691408710 ~2005
2778469691555693938310 ~2005
2778628943555725788710 ~2005
2778640583555728116710 ~2005
277872731913337891131312 ~2008
27789164638892532681711 ~2008
2778922439555784487910 ~2005
2779001591555800318310 ~2005
2779007723555801544710 ~2005
27790426992779042699111 ~2006
2779065011555813002310 ~2005
2779095023555819004710 ~2005
2779105139555821027910 ~2005
2779147883555829576710 ~2005
2779159979555831995910 ~2005
2779196963555839392710 ~2005
27792529211667551752711 ~2006
Exponent Prime Factor Digits Year
2779423499555884699910 ~2005
2779452899555890579910 ~2005
27794545211667672712711 ~2006
2779518611555903722310 ~2005
2779579919555915983910 ~2005
2779612091555922418310 ~2005
2779755911555951182310 ~2005
27797632492223810599311 ~2006
2779801991555960398310 ~2005
2779835939555967187910 ~2005
2779937819555987563910 ~2005
2779964279555992855910 ~2005
2780035943556007188710 ~2005
2780081651556016330310 ~2005
27800844412224067552911 ~2006
2780091911556018382310 ~2005
278014456924465272207312 ~2009
2780275691556055138310 ~2005
2780525063556105012710 ~2005
27805525571668331534311 ~2006
2780569919556113983910 ~2005
2780580311556116062310 ~2005
27806868616117511094311 ~2007
27807613392780761339111 ~2006
2780846639556169327910 ~2005
Exponent Prime Factor Digits Year
2780868791556173758310 ~2005
27808841515005591471911 ~2007
2780999843556199968710 ~2005
2781004463556200892710 ~2005
2781046979556209395910 ~2005
2781065879556213175910 ~2005
27810801496118376327911 ~2007
2781235031556247006310 ~2005
2781573023556314604710 ~2005
2781619343556323868710 ~2005
2781750971556350194310 ~2005
27817760475007196884711 ~2007
2781854819556370963910 ~2005
27819029715007425347911 ~2007
27819225971669153558311 ~2006
2781930551556386110310 ~2005
2781955751556391150310 ~2005
2782000631556400126310 ~2005
2782014479556402895910 ~2005
27820256211669215372711 ~2006
27821788011669307280711 ~2006
2782185911556437182310 ~2005
2782650371556530074310 ~2005
27828084531669685071911 ~2006
2782845599556569119910 ~2005
Exponent Prime Factor Digits Year
278287744318366991123912 ~2009
2782926383556585276710 ~2005
27829397512226351800911 ~2006
27829426972226354157711 ~2006
2783147963556629592710 ~2005
27831597498349479247111 ~2008
2783198003556639600710 ~2005
2783211659556642331910 ~2005
2783237711556647542310 ~2005
2783317739556663547910 ~2005
27834496372226759709711 ~2006
27835100331670106019911 ~2006
2783574179556714835910 ~2005
27835840931670150455911 ~2006
2783597039556719407910 ~2005
2783716223556743244710 ~2005
2783795411556759082310 ~2005
2783841479556768295910 ~2005
2784028199556805639910 ~2005
2784055559556811111910 ~2005
278412184926170745380712 ~2009
2784160859556832171910 ~2005
2784237563556847512710 ~2005
2784241511556848302310 ~2005
2784333059556866611910 ~2005
4269
GIMPS The Prime Pages FactorDb.com
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26-02-08