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

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MnStatusDetails
15122687Composite, with 3 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
362944489928.4old
68046659745381489611962.62016-08-31 11:19:46
8031527693229708611537296812789.42023-05-25 18:39:47
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2023-06-21prime23DCE38C0DF88587D33867790353
P-1 factors
DateFactorB1B2
2023-05-25803152769322970861153729681467000444587220
History
DateUserTypeResult
2023-06-21Chad Steenerson CERT
PRP Certification
Proof certified good
2023-06-21prime23C-PRP
M15122687/362944489/6804665974538148961/803152769322970861153729681 : DCE38C0DF88587D3
PRP proof power = 8
PRP: Verified
Proof certified good
2023-05-25JacobZF-PM1
Factor: 803152769322970861153729681 / (P-1, B1=467000, B2=444587220)
2016-08-31TJAOIF
Factor: 6804665974538148961 / TF: 62-63