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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
6417431128348638 ~1984
6417479128349598 ~1984
64174791540194979
6417731128354638 ~1984
6417737513418978 ~1986
6417739641773918 ~1986
6418031128360638 ~1984
6418189198963859110 ~1990
6418259513460738 ~1986
6418747641874718 ~1986
6418799128375998 ~1984
6418927641892718 ~1986
64190031540560739 ~1987
6419011641901118 ~1986
6419051128381038 ~1984
6419249513539938 ~1986
6419899641989918 ~1986
6420377513630178 ~1986
6420487642048718 ~1986
6420599513647938 ~1986
6420731128414638 ~1984
64209131027346099 ~1986
6420971128419438 ~1984
6421139128422798 ~1984
64213511155843199 ~1986
Exp. Prime Factor Digits Year
6421403128428078 ~1984
6421477106596518310 ~1989
6421511513720898 ~1986
6421643128432878 ~1984
6421697513735778 ~1986
6421763710246987910 ~1991
6421799128435998 ~1984
6421817385309038 ~1985
6422051128441038 ~1984
6422113385326798 ~1985
6422261101471723910 ~1989
6422441385346478 ~1985
6422459513796738 ~1986
6422539642253918 ~1986
6422639128452798 ~1984
64226771027628339 ~1986
6422701385362078 ~1985
6422777513822178 ~1986
6422939128458798 ~1984
6422959642295918 ~1986
6423377385402638 ~1985
6423503128470078 ~1984
6423517385411038 ~1985
6423611513888898 ~1986
6423779128475598 ~1984
Exp. Prime Factor Digits Year
6423863128477278 ~1984
6424001385440078 ~1985
6424091128481838 ~1984
6424091513927298
64241117195004339 ~1988
6424177385450638 ~1985
64243732055799379 ~1987
6424553385473198 ~1985
64247711156458799 ~1986
6424811128496238 ~1984
6424919128498398 ~1984
6424973385498398 ~1985
6425117385507038 ~1985
6425351128507038 ~1984
64255933469820239 ~1988
6425899237758263110 ~1990
6425927514074178 ~1986
64259278225186579
6426041385562478 ~1985
6426071128521438 ~1984
64261631028186099 ~1986
64262271670819039 ~1987
6426317385579038 ~1985
6426383128527678 ~1984
6426401385584078 ~1985
Exp. Prime Factor Digits Year
6426599128531998 ~1984
6426611128532238 ~1984
64267133984562079 ~1988
6426851128537038 ~1984
6426851514148098
6426907642690718 ~1986
64269197198149299 ~1988
6426923128538478 ~1984
64272733470727439 ~1988
6427331128546638 ~1984
6427433385645998 ~1985
6427703128554078 ~1984
6428117514249378 ~1986
6428777158147914310 ~1989
6428813385728798 ~1985
6428833385729998 ~1985
6429221514337698 ~1986
6429343642934318 ~1986
6429359128587198 ~1984
6429373430767991110 ~1990
64294131543059139 ~1987
6429877385792638 ~1985
6429937385796238 ~1985
6430253385815198 ~1985
6430261385815678 ~1985
789
GIMPS The Prime Pages FactorDb.com
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25-05-04