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

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MnStatusDetails
11663053Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
8797674138971239.7old
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2021-10-04RichD0085FB721EC8323031245449453
History
DateUserTypeResult
2025-06-12yuriy_5-1NF
no factor from 2^70 to 2^71
2025-05-06yuriy_5-1NF
no factor from 2^69 to 2^70
2025-03-31yuriy_5-1NF
no factor from 2^68 to 2^69
2025-03-11yuriy_5-1NF-PM1
B1=6997830, B2=453435840
2025-02-10yuriy_5-1NF-PM1
B1=4665220, B2=598008840
2024-06-17yuriy_5-1NF-PM1
B1=262144, B2=137022600
2021-10-04Stef42CERT
PRP Certification
Proof certified good
2021-10-04RichD0C-PRP
M11663053/879767413897 : 085FB721EC832303
PRP proof power = 8
PRP: Verified
Proof certified good