Marin Mersenne 2^P-1
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Finding World Record Primes Since 1996

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MnStatusDetails
25243Composite, with 4 known prime factors. Cofactor is PRP (Probable-Prime).
Factored
FactorDigitsBitsDate
252431617.9old
403889618.62008-08-26 19:59:11
43014073825.42008-08-26 19:59:11
4492452368792231613383525898313098.52016-12-05 08:02:19
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified (Factored)2017-11-09kkmrkkblmbrbkPRP_PRP_PRP_PRP_41002213
P-1 factors
DateFactorB1B2
2016-12-054492452368792231613383525898315000000000
History
DateUserTypeResult
2017-11-09kkmrkkblmbrbkP-PRP
M25243/252431/403889/43014073/449245236879223161338352589831 is a probable prime.
2016-12-05kkmrkkblmbrbkF-PM1
Factor: 449245236879223161338352589831 / (P-1, B1=500000000)
2008-08-26-Anonymous-F
Factor: 43014073
2008-08-26-Anonymous-F
Factor: 403889