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
263881307Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
1257784705020091914792166.82015-12-29 06:36:08
History
DateUserTypeResult
2015-12-29ConductorF
Factor: 125778470502009191479 / TF: 66-67
2014-05-25sasaki3NF
no factor from 2^65 to 2^66
2011-08-16albin_pouillesNF
no factor from 2^64 to 2^65
2010-03-18sasaki3NF
no factor from 2^63 to 2^64
2010-03-18sasaki3NF
no factor from 2^62 to 2^63