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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
637955737382773442310 ~2001
637960259127592051910 ~2000
637962023127592404710 ~2000
637970303127594060710 ~2000
637979591127595918310 ~2000
637985279127597055910 ~2000
637996571127599314310 ~2000
638000963127600192710 ~2000
638018933382811359910 ~2001
638029097382817458310 ~2001
638033771127606754310 ~2000
638062823127612564710 ~2000
638063603127612720710 ~2000
638067191127613438310 ~2000
638079551127615910310 ~2000
638117999127623599910 ~2000
638128571510502856910 ~2001
638153291127630658310 ~2000
638169731510535784910 ~2001
638171761382903056710 ~2001
638241491127648298310 ~2000
638251703127650340710 ~2000
638258063127651612710 ~2000
638262923127652584710 ~2000
638264591127652918310 ~2000
Exponent Prime Factor Digits Year
638276531127655306310 ~2000
638298119127659623910 ~2000
638306243127661248710 ~2000
638316851127663370310 ~2000
638341079127668215910 ~2000
638354939127670987910 ~2000
638392397383035438310 ~2001
638413463127682692710 ~2000
638421317383052790310 ~2001
638449631127689926310 ~2000
638453069510762455310 ~2001
638457983127691596710 ~2000
638461193383076715910 ~2001
638476211127695242310 ~2000
638484383127696876710 ~2000
638496359127699271910 ~2000
638544059127708811910 ~2000
638549039127709807910 ~2000
638554883127710976710 ~2000
638609759127721951910 ~2000
638618423127723684710 ~2000
638619281383171568710 ~2001
638645939127729187910 ~2000
638650559510920447310 ~2001
638652101510921680910 ~2001
Exponent Prime Factor Digits Year
6386566931405044724711 ~2002
638704523127740904710 ~2000
638730311127746062310 ~2000
638735893383241535910 ~2001
638739197894234875910 ~2002
638744003127748800710 ~2000
638752091127750418310 ~2000
6387739517665287412111 ~2004
638806379127761275910 ~2000
6388228811405410338311 ~2002
638833319127766663910 ~2000
638852441511081952910 ~2001
6388772034216589539911 ~2004
638902811127780562310 ~2000
638911633383346979910 ~2001
638923847511139077710 ~2001
638985419127797083910 ~2000
639007151127801430310 ~2000
639034439127806887910 ~2000
639034943127806988710 ~2000
639059951127811990310 ~2000
639060959127812191910 ~2000
639082403127816480710 ~2000
639089281383453568710 ~2001
639092351127818470310 ~2000
Exponent Prime Factor Digits Year
6391074591533857901711 ~2002
639112811127822562310 ~2000
6391216273706905436711 ~2003
639145103127829020710 ~2000
639154991127830998310 ~2000
639182413383509447910 ~2001
6391847091917554127111 ~2003
639196469894875056710 ~2002
639204491127840898310 ~2000
639258563127851712710 ~2000
639265163127853032710 ~2000
639293723127858744710 ~2000
639297203127859440710 ~2000
6393054896520915987911 ~2004
639316091127863218310 ~2000
639317279127863455910 ~2000
639345491127869098310 ~2000
639348533383609119910 ~2001
639364357383618614310 ~2001
639369443127873888710 ~2000
639382259127876451910 ~2000
639386203639386203110 ~2002
639397151127879430310 ~2000
639402371127880474310 ~2000
639406477383643886310 ~2001
3823
GIMPS The Prime Pages FactorDb.com
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26-08-02