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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.
Exp. Prime Factor Digits Year
3912481234748878 ~1984
391271978254397 ~1982
3912749313019938 ~1984
3912893234773598 ~1984
3912947313035778 ~1984
391310378262077 ~1982
3913109313048738 ~1984
3913181234790878 ~1984
3913277234796638 ~1984
3913513234810798 ~1984
39135611174068319 ~1985
391358378271677 ~1982
3913589547902478 ~1985
3913807626209138 ~1985
3913963391396318 ~1984
3913963626234098
391399178279837 ~1982
39139931800436799 ~1986
3914179704552238 ~1985
3914201234852078 ~1984
3914221234853278 ~1984
391427978285597 ~1982
391430378286077 ~1982
3914353234861198 ~1984
39144611878941299 ~1986
Exp. Prime Factor Digits Year
3914593234875598 ~1984
391469978293997 ~1982
3914873234892398 ~1984
3914873548082238
3914891313191298 ~1984
3914921234895278 ~1984
3914921313193698
3915061234903678 ~1984
3915077234904638 ~1984
391525178305037 ~1982
3915257548135998 ~1985
3915341234920478 ~1984
3915433626469298 ~1985
3915487704787678 ~1985
3915511391551118 ~1984
391573178314637 ~1982
3915781234946878 ~1984
3915937234956238 ~1984
391595978319197 ~1982
391601978320397 ~1982
3916021234961278 ~1984
3916027391602718 ~1984
3916037234962238 ~1984
391607978321597 ~1982
391627178325437 ~1982
Exp. Prime Factor Digits Year
39163013994627039 ~1987
39163091566523619 ~1986
391634378326877 ~1982
3916459391645918 ~1984
391649978329997 ~1982
39165434464859039 ~1987
391669178333837 ~1982
391679978335997 ~1982
3916981235018878 ~1984
391718378343677 ~1982
3917281235036878 ~1984
391741178348237 ~1982
3918269548557678 ~1985
39182811253849939 ~1985
39183231018763999 ~1985
3918353235101198 ~1984
3918359313468738 ~1984
3918401235104078 ~1984
391844378368877 ~1982
3918557235113438 ~1984
391885178377037 ~1982
391898378379677 ~1982
3919021627043378 ~1985
3919033235141998 ~1984
3919087391908718 ~1984
Exp. Prime Factor Digits Year
3919319313545538 ~1984
3919397548715598 ~1985
3919417235165038 ~1984
391952378390477 ~1982
3919613235176798 ~1984
3919829548776078 ~1985
391985978397197 ~1982
3920011392001118 ~1984
3920071705612798 ~1985
3920153548821438 ~1985
3920177313614178 ~1984
3920179392017918 ~1984
3920431392043118 ~1984
39204532195453699 ~1986
3920551392055118 ~1984
3920797235247838 ~1984
3920923392092318 ~1984
392102378420477 ~1982
392105978421197 ~1982
3921161235269678 ~1984
3921173235270398 ~1984
3921191313695298 ~1984
3921217627394738 ~1985
3921601235296078 ~1984
3921637235298238 ~1984
584
GIMPS The Prime Pages FactorDb.com
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25-04-13