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

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MnStatusDetails
15019327Composite, with 3 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
270347887928.0old
127664279511133.62008-09-08 10:43:36
33294118002993822490312271.52023-04-27 22:13:20
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2023-05-31PerigB0D855318E2403A531292945753
P-1 factors
DateFactorB1B2
2023-04-273329411800299382249031569000550533060
History
DateUserTypeResult
2023-05-31crutanCERT
PRP Certification
Proof certified good
2023-05-31PerigC-PRP
M15019327/270347887/12766427951/3329411800299382249031 : B0D855318E2403A5
PRP proof power = 8
PRP: Verified
Proof certified good
2023-04-27JacobZF-PM1
Factor: 3329411800299382249031 / (P-1, B1=569000, B2=550533060)
2021-07-26ViliamFNF
no factor from 2^67 to 2^68
2008-09-08Will EdgingtonF
Factor: 12766427951