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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
3880810197761620399 ~1998
388090793232854475910 ~1999
3881143197762286399 ~1998
3881367117762734239 ~1998
3881482797762965599 ~1998
3881485437762970879 ~1998
3881529837763059679 ~1998
3881559837763119679 ~1998
388204207698767572710 ~2000
3882252837764505679 ~1998
388226621232935972710 ~1999
3882362637764725279 ~1998
3882531717765063439 ~1998
3882798171863743121711 ~2001
3882844437765688879 ~1998
388304251388304251110 ~2000
388311089310648871310 ~2000
3883125597766251199 ~1998
388315229310652183310 ~2000
388319341232991604710 ~1999
388320041232992024710 ~1999
3883321991630995235911 ~2001
3883464117766928239 ~1998
388354679699038422310 ~2000
388370501310696400910 ~2000
Exponent Prime Factor Digits Year
388375451310700360910 ~2000
3883866117767732239 ~1998
3883933917767867839 ~1998
388403791621446065710 ~2000
3884061597768123199 ~1998
3884103717768207439 ~1998
388412641854507810310 ~2001
3884206917768413839 ~1998
388446061233067636710 ~1999
3884500197769000399 ~1998
3884595837769191679 ~1998
388476887310781509710 ~2000
3884783695594088513711 ~2003
3885011637770023279 ~1998
388505771310804616910 ~2000
3885499197770998399 ~1998
3885545637771091279 ~1998
3885550917771101839 ~1998
3885838317771676639 ~1998
3885954117771908239 ~1998
3886109517772219039 ~1998
3886131717772263439 ~1998
388622309932693541710 ~2001
388631273233178763910 ~1999
3886366917772733839 ~1998
Exponent Prime Factor Digits Year
3886538997773077999 ~1998
3886561191632355699911 ~2001
3886581117773162239 ~1998
388660793233196475910 ~1999
3886737237773474479 ~1998
388676779388676779110 ~2000
3886772037773544079 ~1998
388677371310941896910 ~2000
3886801797773603599 ~1998
388681529310945223310 ~2000
3887016717774033439 ~1998
388705771388705771110 ~2000
388720153233232091910 ~1999
3887208237774416479 ~1998
388729199310983359310 ~2000
388751669311001335310 ~2000
3887527797775055599 ~1998
388770167699786300710 ~2000
388778461622045537710 ~2000
3887796237775592479 ~1998
3887796597775593199 ~1998
3887898837775797679 ~1998
388800043622080068910 ~2000
3888031797776063599 ~1998
3888074037776148079 ~1998
Exponent Prime Factor Digits Year
3888092517776185039 ~1998
3888141717776283439 ~1998
388820387311056309710 ~2000
3888288597776577199 ~1998
388832113622131380910 ~2000
3888455037776910079 ~1998
3888462597776925199 ~1998
3888472197776944399 ~1998
3888599517777199039 ~1998
388869329544417060710 ~2000
3888709917777419839 ~1998
3888716637777433279 ~1998
388872251311097800910 ~2000
388880237311104189710 ~2000
3888820317777640639 ~1998
3888836997777673999 ~1998
388893433233336059910 ~1999
3889153917778307839 ~1998
3889200717778401439 ~1998
3889296837778593679 ~1998
3889395117778790239 ~1998
3889562037779124079 ~1998
3889689494356452228911 ~2002
3889699917779399839 ~1998
388981667311185333710 ~2000
3082
GIMPS The Prime Pages FactorDb.com
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25-05-04