Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

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MnStatusDetails
209447521Composite: 3 known prime factors
Factored
FactorDigitsBitsDate
21912399647031341.02007-12-16 21:52:22
18558206510915931650.72007-12-16 21:52:22
3077203364451624293772168.12024-08-13 07:51:14
History
DateUserTypeResult
2024-08-13TJAOIF
Factor: 307720336445162429377 / TF: 51-69