Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

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MnDetails
7918661
Composite, with 1 known prime factor. Cofactor is composite.
Trial Factored to 268
TF target 267
Factored
FactorDigitsBitsDate
6530766788923211549.2old
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors		ShiftTypeBase
Verified
PRP without proof (not generated)
2018-06-06storm55106A3A466C21E5F1ED1269778653
Verified
PRP without proof (not generated)
2019-11-19marssystems6A3A466C21E5F1ED1384819553
History
DateUserTypeResult
2024-02-05Stef42NF-PM1B1=950000, B2=1968826860
2019-11-19marssystemsC-PRP
M7918661/653076678892321 : 6A3A466C21E5F1ED
2018-06-06storm5510C-PRP
M7918661/653076678892321 : 6A3A466C21E5F1ED