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
66248431Factored
FactorDigitsBitsDate
1257648137781650243657532476.72014-03-28 08:10:30
P-1 factors
DateFactorB1B2
2014-03-281257648137781650243657536950000
History
DateUserTypeResult
2014-03-28Earle LoweF-PM1
Factor: 125764813778165024365753
2014-03-22Bill StaffenNF
no factor from 2^73 to 2^74
2014-03-22Bill StaffenNF
no factor from 2^72 to 2^73
2014-03-22Bill StaffenNF
no factor from 2^71 to 2^72
2012-06-27xiaowuc1NF
no factor from 2^70 to 2^71
2012-02-10LautturiNF
no factor from 2^69 to 2^70
2010-02-24]mh[ VirtekNF
no factor from 2^68 to 2^69
2010-02-21]mh[ VirtekNF
no factor from 2^67 to 2^68
2009-12-14Michael HanschoNF
no factor from 2^66 to 2^67
2009-12-04Team_Elteor_Borislavj~ElteorNF
no factor from 2^65 to 2^66
2009-12-02amanattoNF
no factor from 2^64 to 2^65
2009-05-031997rj7NF
no factor to 2^64