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

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MnStatusDetails
14901959Composite, with 3 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
29803919824.8old
8519726220266921511859.62015-11-29 11:31:11
6874700797256568112838572479.22023-05-14 17:17:06
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2023-05-22PerigB1E7CEFEAFCFA81231189781853
P-1 factors
DateFactorB1B2
2023-05-14687470079725656811283857300000320708850
History
DateUserTypeResult
2023-05-22ChuckCERT
PRP Certification
Proof certified good
2023-05-22PerigC-PRP
M14901959/29803919/851972622026692151/687470079725656811283857 : B1E7CEFEAFCFA812
PRP proof power = 8
PRP: Verified
Proof certified good
2023-05-14nordiF-PM1
Factor: 687470079725656811283857 / (P-1, B1=300000, B2=320708850)
2023-03-19nordiNF-PM1
B1=300000
2015-11-29TJAOIF
Factor: 851972622026692151 / TF: 59-60