Marin Mersenne 2^P-1
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MnStatusDetails
11295281Composite, with 2 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
67771687826.0old
1115018407933031546.72008-10-01 00:34:19
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2021-06-29kutens428DBDCFCF9E2C672903548953
History
DateUserTypeResult
2025-06-16vshNF
no factor from 2^71 to 2^72
2025-06-02vshNF-PM1
B1=10000000, B2=20257605060
2025-04-11vshNF
no factor from 2^70 to 2^71
2025-03-18vshNF
no factor from 2^69 to 2^70
2025-02-16vshNF
no factor from 2^68 to 2^69
2024-06-12vshNF-PM1
B1=312500, B2=122137470
2021-06-29JayderCERT
PRP Certification
Proof certified good
2021-06-29kutensC-PRP
M11295281/67771687/111501840793303 : 428DBDCFCF9E2C67
PRP proof power = 8
PRP: Verified
Proof certified good
2008-10-01markrF
Factor: 111501840793303