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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
398116093238869655910 ~1999
3981207717962415439 ~1998
3981208437962416879 ~1998
398121539318497231310 ~2000
398140997238884598310 ~1999
398142637238885582310 ~1999
3981469797962939599 ~1998
398158771398158771110 ~2000
3981610797963221599 ~1998
3981679437963358879 ~1998
398178797318543037710 ~2000
3981815517963631039 ~1998
3981908397963816799 ~1998
3981939534141217111311 ~2002
3981952991592781196111 ~2001
3982259397964518799 ~1998
3982263717964527439 ~1998
398226583637162532910 ~2000
3982321797964643599 ~1998
3982417437964834879 ~1998
3982438437964876879 ~1998
3982636437965272879 ~1998
398278981238967388710 ~1999
3982796397965592799 ~1998
3982879317965758639 ~1998
Exponent Prime Factor Digits Year
3982949997965899999 ~1998
398297441318637952910 ~2000
3982975917965951839 ~1998
3982985037965970079 ~1998
3983033037966066079 ~1998
398311847318649477710 ~2000
3983210517966421039 ~1998
398325943637321508910 ~2000
3983261997966523999 ~1998
3983278797966557599 ~1998
398338891398338891110 ~2000
3983435037966870079 ~1998
3983450997966901999 ~1998
3984091317968182639 ~1998
3984323997968647999 ~1998
3984349197968698399 ~1998
3984432117968864239 ~1998
3984511437969022879 ~1998
3984526797969053599 ~1998
3984563517969127039 ~1998
398457377956297704910 ~2001
398458859318767087310 ~2000
3984790797969581599 ~1998
398491619318793295310 ~2000
3984954117969908239 ~1998
Exponent Prime Factor Digits Year
3984963597969927199 ~1998
3985028037970056079 ~1998
3985038237970076479 ~1998
3985199397970398799 ~1998
398520217239112130310 ~1999
3985248117970496239 ~1998
3985270437970540879 ~1998
3985304037970608079 ~1998
3985321197970642399 ~1998
3985423797970847599 ~1998
3985464717970929439 ~1998
398551849876814067910 ~2001
3985642491275405596911 ~2001
398578681239147208710 ~1999
3985913397971826799 ~1998
398596439717473590310 ~2001
3985987317971974639 ~1998
398613113558058358310 ~2000
3986134437972268879 ~1998
398618237239170942310 ~1999
3986210397972420799 ~1998
3986263797972527599 ~1998
3986379237972758479 ~1998
398666837239200102310 ~1999
3986877717973755439 ~1998
Exponent Prime Factor Digits Year
398712599956910237710 ~2001
3987208917974417839 ~1998
398729053239237431910 ~1999
3987373797974747599 ~1998
3987662397975324799 ~1998
398769233239261539910 ~1999
3987944637975889279 ~1998
3987955399969888475111 ~2003
3987961797975923599 ~1998
3987994197975988399 ~1998
3988046037976092079 ~1998
3988065117976130239 ~1998
3988193637976387279 ~1998
3988267317976534639 ~1998
3988285437976570879 ~1998
3988570131196571039111 ~2001
3988622637977245279 ~1998
3988688037977376079 ~1998
3988832637977665279 ~1998
3988881117977762239 ~1998
398888599398888599110 ~2000
398899717239339830310 ~1999
3988997991914719035311 ~2002
3989012037978024079 ~1998
3989020437978040879 ~1998
3131
GIMPS The Prime Pages FactorDb.com
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25-06-08