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

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MnStatusDetails
3859019Composite, with 2 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
13892468411030.4old
10620056572966410171959.92015-12-21 12:11:02
ECM
DigitsB1Curves
25500003 / 280
Estimated T-Level: 20.1
TF below 2^62 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-20kkmrkkblmbrbk7F52B531C485A0EC2013
Verified2017-12-20ATH7F52B531C485A0EC2197635913
History
DateUserTypeResult
2022-05-20JossNF-PM1
B1=100000, B2=130364850
2022-03-22JossNF-PM1
B1=100000
2022-03-02JossNF-PM1
B1=90000
2017-12-20ATHC-PRP
M3859019/1389246841/1062005657296641017 : 7F52B531C485A0EC
PRP: Verified
PRP without proof (not generated)
2017-09-20kkmrkkblmbrbkC-PRP
M3859019/1062005657296641017/1389246841 : 7F52B531C485A0EC
PRP: Verified
PRP without proof (not generated)
2015-12-21TJAOIF
Factor: 1062005657296641017 / TF: 59-60