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
282001471Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
2539995999960565953772167.82016-11-14 05:36:14
History
DateUserTypeResult
2016-11-14Mikhail E. GolosovF
Factor: 253999599996056595377 / TF: 67-68
2016-01-21sky_windhNF
no factor from 2^66 to 2^67
2013-12-17GrunwalderGIMPNF
no factor from 2^65 to 2^66
2011-09-16OS1NF
no factor from 2^64 to 2^65
2010-04-09sasaki3NF
no factor from 2^63 to 2^64
2010-04-09sasaki3NF
no factor from 2^62 to 2^63