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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
489914899116 1965
48991172448338
4900969592797 1965
4901935293697 1965
4901939215217
49019220585518
4903127457377 1965
490373922976 1965
49037724766878
49103982075 1965
4910939287217 1965
4911711788097 1965
4916911800577 1965
4919915743697 1965
492011439621279 ~1975
49211507857538 ~1974
492612955676 1965
49261590146798
492772956636 1965
4929734507917 1965
49307236673618 1965
49331986635 1965
49333369997518 1965
493398881036 1965
49391193612738 1965
Exp. Prime Factor Digits Year
49409853787538 ~1975
49429201670338 1965
49429746377918
494594945916 1965
49463989275 1965
49499989995 1965
4952914858717 1965
49559991195 1965
49603302578318 1965
4962759552417 1965
496271369705219
49711510034878 ~1974
49787152348238 1965
49789497890018 ~1974
497891668927299
49807267961678 1965
49811996235 1965
4984371773937 1965
4989159869217 1965
49919998395 1965
499193993536
499217987376 1965
499572997436 1965
49993470934078 1965
5002155023117 1965
Exp. Prime Factor Digits Year
50033318610144110 ~1979
500475004716 1965
500511001036 1965
500533003196 1965
500773004636 1965
5009336066977 1965
5012972185777 1965
5015921066797 1965
50177207732798 1965
50177296044318
5020712049697 1965
50207334378638
5029149285197 1965
50291108628578
503213019276 1965
50321591774978
503337046636 1965
5037720150817 1965
5038713100637 1965
504111008236 1965
504114032896
504119073996
504231008476 1965
5045937339677 1965
50459323946798
Exp. Prime Factor Digits Year
504973029836 1965
505035050316 1965
5052712126497 1965
50587211453678 1965
505911011836 1965
5059396126717 1965
50651641241678 ~1975
506511261209919
507079127276 1965
507731531313699 ~1975
507894063136 1965
50849324416638 1965
5086774265837 1965
50867174982498
5089335625117 1965
5090915272717 1965
50971130485778 1965
51109167637538 1965
5113113294077 1965
51133379406878 1965
511372879013119 ~1976
5115727624797 1965
5116945028737 1965
51197212979538 1965
512031024076 1965
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