Marin Mersenne 2^P-1
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GIMPS
Finding World Record Primes Since 1996

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MnStatusDetails
51723257Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
1967199450539344631013832477.42010-03-02 13:51:16
History
DateUserTypeResult
2022-04-05LordJuliusNF
no factor from 2^60 to 2^63
2010-03-02belezbarF-PM1
Factor: 196719945053934463101383
2009-08-20subgeniusNF
no factor from 2^67 to 2^68
2009-02-03tmorrowNF
no factor from 2^66 to 2^67
2009-02-02tmorrowNF
no factor from 2^65 to 2^66
2009-02-01tmorrowNF
no factor from 2^64 to 2^65
2009-01-31tmorrowNF
no factor from 2^63 to 2^64