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
73505849Factored
FactorDigitsBitsDate
861771611784553353328671058092996.12015-11-24 15:56:22
P-1 factors
DateFactorB1B2
2015-11-248617716117845533533286710580963000012600000
History
DateUserTypeResult
2015-11-24Jimmy BrüggemannF-PM1
Factor: 86177161178455335332867105809 / (P-1 B1=630000, B2=12600000, E=6)
2015-09-28endless_mikeNF
no factor from 2^74 to 2^75
2015-09-28endless_mikeNF
no factor from 2^73 to 2^74
2015-09-18cuBerBruceNF
no factor from 2^72 to 2^73
2015-01-09RichD0NF
no factor from 2^71 to 2^72
2014-07-29Mark RoseNF
no factor from 2^70 to 2^71
2010-08-19Tom DuellNF
no factor to 2^70
2010-06-13Martin RehrmannNF
no factor from 2^65 to 2^66
2010-06-08Grange JulienNF
no factor from 2^64 to 2^65