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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
6890063137801278 ~1984
6890231551218498 ~1986
6890249551219938 ~1986
6890309964643278 ~1986
68904371102469939 ~1987
6890519137810398 ~1984
6890531137810638 ~1984
6890531551242498
68906573307515379 ~1988
6890699137813998 ~1984
68908094410117779 ~1988
6890833413449998 ~1986
6890861551268898 ~1986
6891029551282338 ~1986
6891323137826478 ~1984
68914271240456879 ~1987
6891491137829838 ~1984
68915396753708239 ~1989
6891557964817998 ~1986
6891713413502798 ~1986
68919911240558399 ~1987
6892007551360578 ~1986
6892097413525838 ~1986
6892271137845438 ~1984
6892289551383138 ~1986
Exp. Prime Factor Digits Year
68925191240653439 ~1987
6892559551404738 ~1986
6892813413568798 ~1986
6893197413591838 ~1986
6893281413596878 ~1986
6893417413605038 ~1986
6893543137870878 ~1984
6893879137877598 ~1984
6894011137880238 ~1984
68940531654572739 ~1987
6894119137882398 ~1984
6894263137885278 ~1984
68943011103088179 ~1987
6894343689434318 ~1986
6894479137889598 ~1984
68945411516799039 ~1987
68945931654702339 ~1987
6894623137892478 ~1984
6894731551578498 ~1986
6894791551583298 ~1986
68949493309575539 ~1988
6894983137899678 ~1984
6895019137900398 ~1984
68951212206438739 ~1987
6895297413717838 ~1986
Exp. Prime Factor Digits Year
68952972758118819
6895349132390700910 ~1989
6895817413749038 ~1986
68959373723805999 ~1988
6895951689595118 ~1986
68959614275495839 ~1988
6895991551679298 ~1986
6896063137921278 ~1984
6896531137930638 ~1984
6896551689655118 ~1986
6896759137935198 ~1984
68968931655254339 ~1987
6897083137941678 ~1984
6897119137942398 ~1984
6897413965637838 ~1986
6897547689754718 ~1986
6897557413853438 ~1986
68976073310851379 ~1988
68976371103621939 ~1987
68976591655438179 ~1987
6897797551823778 ~1986
68978291517522399 ~1987
6897899137957998 ~1984
6898019137960398 ~1984
6898163137963278 ~1984
Exp. Prime Factor Digits Year
6898187551854978 ~1986
6898279689827918 ~1986
6898483689848318 ~1986
68985111241731999 ~1987
6898571137971438 ~1984
6898601413916078 ~1986
6898637551890978 ~1986
6898799137975998 ~1984
6898819689881918 ~1986
6898883137977678 ~1984
68989215381158399 ~1988
6898949551915938 ~1986
6899219551937538 ~1986
68992811517841839 ~1987
6899351137987038 ~1984
6899383689938318 ~1986
6899533413971998 ~1986
6899779689977918 ~1986
6900083138001678 ~1984
6900151690015118 ~1986
69001511242027199
69004693726253279 ~1988
6900479552038338 ~1986
6900577414034638 ~1986
6900599138011998 ~1984
855
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26-03-08