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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
1245063251249012650310 ~2002
12450967031245096703111 ~2004
1245123419249024683910 ~2002
1245168311249033662310 ~2002
1245168557996134845710 ~2004
1245195179249039035910 ~2002
12452244291743314200711 ~2004
1245308651249061730310 ~2002
1245332639249066527910 ~2002
1245340919249068183910 ~2002
1245375023249075004710 ~2002
1245379979249075995910 ~2002
1245395159249079031910 ~2002
12454619472241831504711 ~2004
1245523619249104723910 ~2002
1245544571996435656910 ~2004
1245548377747329026310 ~2003
1245550259249110051910 ~2002
1245568283249113656710 ~2002
1245587159249117431910 ~2002
1245611183249122236710 ~2002
1245627059996501647310 ~2004
1245638099249127619910 ~2002
1245638341747383004710 ~2003
1245649739249129947910 ~2002
Exponent Prime Factor Digits Year
12456781272989627504911 ~2005
1245678491249135698310 ~2002
1245700679249140135910 ~2002
1245701519249140303910 ~2002
1245708203249141640710 ~2002
1245771479249154295910 ~2002
1245808391996646712910 ~2004
1245818459249163691910 ~2002
1245862763249172552710 ~2002
1245898637747539182310 ~2003
1245923747996738997710 ~2004
1245933257996746605710 ~2004
1245941639249188327910 ~2002
1245959777747575866310 ~2003
1245991979249198395910 ~2002
1245998101747598860710 ~2003
1246031159249206231910 ~2002
12460432912242877923911 ~2004
1246100879249220175910 ~2002
1246162019249232403910 ~2002
1246188011249237602310 ~2002
1246218299249243659910 ~2002
12462315431993970468911 ~2004
1246293731249258746310 ~2002
1246341581747804948710 ~2003
Exponent Prime Factor Digits Year
1246412831249282566310 ~2002
1246444883249288976710 ~2002
12465876311994540209711 ~2004
1246676159249335231910 ~2002
1246756583249351316710 ~2002
1246757591997406072910 ~2004
1246777223249355444710 ~2002
1246833997748100398310 ~2003
1246835279249367055910 ~2002
1246843739249368747910 ~2002
1246850593748110355910 ~2003
12468647931745610710311 ~2004
1246880879249376175910 ~2002
1246888337748133002310 ~2003
12469016298728311403111 ~2006
12469140131995062420911 ~2004
1246942211249388442310 ~2002
1246951859249390371910 ~2002
1247031743249406348710 ~2002
1247063399249412679910 ~2002
1247071271249414254310 ~2002
1247073587997658869710 ~2004
1247083703249416740710 ~2002
1247121779249424355910 ~2002
1247130719249426143910 ~2002
Exponent Prime Factor Digits Year
12471703991247170399111 ~2004
12471789176734766151911 ~2006
1247198717997758973710 ~2004
12472268532743899076711 ~2005
1247303159249460631910 ~2002
1247313533748388119910 ~2003
1247320031249464006310 ~2002
1247328611249465722310 ~2002
1247347151249469430310 ~2002
1247358851249471770310 ~2002
1247433023249486604710 ~2002
1247450651249490130310 ~2002
1247466431249493286310 ~2002
1247477639249495527910 ~2002
12475091293742527387111 ~2005
12475503191247550319111 ~2004
1247551463249510292710 ~2002
1247554631249510926310 ~2002
1247579783249515956710 ~2002
1247627063249525412710 ~2002
1247644439249528887910 ~2002
1247649131249529826310 ~2002
1247677979998142383310 ~2004
1247700749998160599310 ~2004
1247732879249546575910 ~2002
3806
GIMPS The Prime Pages FactorDb.com
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25-11-02