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
101202809Factored
FactorDigitsBitsDate
12075235637414495233815292580.02020-11-20 08:21:13
P-1 factors
DateFactorB1B2
2020-11-20120752356374144952338152975000025000000
History
DateUserTypeResult
2020-11-20ky0urakuF-PM1
Factor: 1207523563741449523381529 / (P-1, B1=750000, B2=25000000)
2020-10-14Kevin JagetNF
no factor from 2^75 to 2^76
2020-10-14Kevin JagetNF
no factor from 2^74 to 2^75
2020-03-11Hans LoeblichNF
no factor from 2^73 to 2^74
2020-03-04el groccoNF
no factor from 2^72 to 2^73
2014-12-13SMoffatNF
no factor from 2^71 to 2^72
2014-10-11SMoffatNF
no factor from 2^70 to 2^71
2014-10-08SMoffatNF
no factor from 2^69 to 2^70
2014-04-30SMoffatNF
no factor from 2^68 to 2^69
2014-04-22Andreas_TruetschNF
no factor from 2^67 to 2^68
2014-04-02-Anonymous-NF
no factor from 2^66 to 2^67
2011-09-02riccardo ubertiNF
no factor from 2^65 to 2^66
2010-08-13OS1NF
no factor from 2^64 to 2^65
2010-03-151997rj7NF
no factor from 2^63 to 2^64