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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
1905291959381058391910 ~2003
190535725715242858056112 ~2007
1905384251381076850310 ~2003
1905384731381076946310 ~2003
19053928071524314245711 ~2005
19054057371143243442311 ~2005
1905416063381083212710 ~2003
19055221732667731042311 ~2006
19056094372667853211911 ~2006
19056341171143380470311 ~2005
19057344971143440698311 ~2005
1905806603381161320710 ~2003
19058318771143499126311 ~2005
19058350694192837151911 ~2006
1905839711381167942310 ~2003
190588463316390607843912 ~2007
1905924743381184948710 ~2003
1906043411381208682310 ~2003
1906089791381217958310 ~2003
1906109531381221906310 ~2003
1906168763381233752710 ~2003
19061688074574805136911 ~2006
19061767873049882859311 ~2006
1906218971381243794310 ~2003
1906222511381244502310 ~2003
Exponent Prime Factor Digits Year
1906225151381245030310 ~2003
1906299599381259919910 ~2003
1906309283381261856710 ~2003
19063392291525071383311 ~2005
1906346003381269200710 ~2003
1906435631381287126310 ~2003
1906466531381293306310 ~2003
19065043371525203469711 ~2005
1906525403381305080710 ~2003
1906588283381317656710 ~2003
19066065171525285213711 ~2005
1906647371381329474310 ~2003
1906688639381337727910 ~2003
1906773383381354676710 ~2003
1906774619381354923910 ~2003
1906801283381360256710 ~2003
19068315411144098924711 ~2005
1906837151381367430310 ~2003
1906843871381368774310 ~2003
1906933079381386615910 ~2003
1906949783381389956710 ~2003
1906963043381392608710 ~2003
19069943811525595504911 ~2005
1907042831381408566310 ~2003
1907071583381414316710 ~2003
Exponent Prime Factor Digits Year
19070780211144246812711 ~2005
1907172131381434426310 ~2003
190721346712206166188912 ~2007
1907306339381461267910 ~2003
1907345663381469132710 ~2003
1907432651381486530310 ~2003
19074604977248349888711 ~2007
1907497643381499528710 ~2003
19075382331144522939911 ~2005
1907541599381508319910 ~2003
1907617163381523432710 ~2003
19076281311526102504911 ~2005
19076306777630522708111 ~2007
1907682011381536402310 ~2003
19077163131144629787911 ~2005
1907804603381560920710 ~2003
1907812979381562595910 ~2003
1907884691381576938310 ~2003
190796996934725053435912 ~2008
19079960999158381275311 ~2007
1908053051381610610310 ~2003
1908086879381617375910 ~2003
1908170963381634192710 ~2003
1908187811381637562310 ~2003
1908200831381640166310 ~2003
Exponent Prime Factor Digits Year
1908267143381653428710 ~2003
19083448972671682855911 ~2006
1908477671381695534310 ~2003
1908502103381700420710 ~2003
1908508163381701632710 ~2003
19085155933053624948911 ~2006
1908546611381709322310 ~2003
1908569051381713810310 ~2003
190863944919468122379912 ~2008
19086914571526953165711 ~2005
1908697211381739442310 ~2003
1908752063381750412710 ~2003
1908766823381753364710 ~2003
1908785699381757139910 ~2003
19088505073054160811311 ~2006
1908875939381775187910 ~2003
19089093971145345638311 ~2005
1908958283381791656710 ~2003
19089636531145378191911 ~2005
1909003223381800644710 ~2003
1909026023381805204710 ~2003
1909030583381806116710 ~2003
19090658571145439514311 ~2005
1909208123381841624710 ~2003
1909239551381847910310 ~2003
3983
GIMPS The Prime Pages FactorDb.com
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25-11-02