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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
25613855514610493991911 ~2007
2561473991512294798310 ~2004
2561490311512298062310 ~2004
2561602919512320583910 ~2004
2561640899512328179910 ~2004
2561752079512350415910 ~2004
2561759339512351867910 ~2004
2561813399512362679910 ~2004
2562106979512421395910 ~2004
256211694132282673456712 ~2009
256214729315885313216712 ~2008
2562270563512454112710 ~2004
2562295523512459104710 ~2004
2562411251512482250310 ~2004
2562770531512554106310 ~2004
2562859163512571832710 ~2004
25629391312050351304911 ~2006
2562942191512588438310 ~2004
2562955019512591003910 ~2004
2562963659512592731910 ~2004
2563008803512601760710 ~2004
2563014059512602811910 ~2004
2563029179512605835910 ~2004
2563045619512609123910 ~2004
2563074719512614943910 ~2004
Exponent Prime Factor Digits Year
2563120271512624054310 ~2004
2563128371512625674310 ~2004
2563139003512627800710 ~2004
2563213463512642692710 ~2004
2563310591512662118310 ~2004
2563325111512665022310 ~2004
2563385543512677108710 ~2004
2563405583512681116710 ~2004
25634239211538054352711 ~2006
2563464203512692840710 ~2004
2563499531512699906310 ~2004
2563543799512708759910 ~2004
2563584203512716840710 ~2004
2563619843512723968710 ~2004
2563680719512736143910 ~2004
2563695371512739074310 ~2004
2563769051512753810310 ~2004
25638324131538299447911 ~2006
2564017679512803535910 ~2004
2564031419512806283910 ~2004
2564141159512828231910 ~2004
256418773732308765486312 ~2009
25642242971538534578311 ~2006
25642934211538576052711 ~2006
2564325251512865050310 ~2004
Exponent Prime Factor Digits Year
2564395451512879090310 ~2004
25644728811538683728711 ~2006
2564551859512910371910 ~2004
2564585531512917106310 ~2004
2564752559512950511910 ~2004
2564785103512957020710 ~2004
25650532131539031927911 ~2006
2565186971513037394310 ~2004
2565251543513050308710 ~2004
25652651211539159072711 ~2006
2565375359513075071910 ~2004
2565382103513076420710 ~2004
25654034392052322751311 ~2006
2565411119513082223910 ~2004
25654891372052391309711 ~2006
25655033211539301992711 ~2006
2565522191513104438310 ~2004
25655467914617984223911 ~2007
2565567611513113522310 ~2004
25656646032565664603111 ~2006
25656815712565681571111 ~2006
25658430432565843043111 ~2006
25659263092052741047311 ~2006
2566071731513214346310 ~2004
2566080371513216074310 ~2004
Exponent Prime Factor Digits Year
25661253792566125379111 ~2006
2566151051513230210310 ~2004
25662569411539754164711 ~2006
2566400663513280132710 ~2004
2566537643513307528710 ~2004
2566580231513316046310 ~2004
25668202373593548331911 ~2007
2566835471513367094310 ~2004
256695841310267833652112 ~2008
25669700712566970071111 ~2006
2566994663513398932710 ~2004
25673311874107729899311 ~2007
2567346011513469202310 ~2004
25673529611540411776711 ~2006
2567362823513472564710 ~2004
2567408219513481643910 ~2004
25674260933594396530311 ~2007
2567529911513505982310 ~2004
2567673743513534748710 ~2004
2567982383513596476710 ~2004
2568050351513610070310 ~2004
2568058511513611702310 ~2004
2568110903513622180710 ~2004
25681800371540908022311 ~2006
2568240491513648098310 ~2004
3935
GIMPS The Prime Pages FactorDb.com
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25-07-08