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

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MnStatusDetails
11657993Composite, with 2 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
69947959826.1old
163211903927.32008-09-08 07:37:44
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2021-10-03RichD020ED77EA33CF5E8E2516026953
History
DateUserTypeResult
2025-06-12yuriy_5-1NF
no factor from 2^70 to 2^71
2025-05-05yuriy_5-1NF
no factor from 2^69 to 2^70
2025-03-28yuriy_5-1NF
no factor from 2^68 to 2^69
2025-03-10yuriy_5-1NF-PM1
B1=6994794, B2=453435840
2025-02-10yuriy_5-1NF-PM1
B1=4663196, B2=598008840
2024-06-17yuriy_5-1NF-PM1
B1=262144, B2=137022600
2021-10-03rduerrCERT
PRP Certification
Proof certified good
2021-10-03RichD0C-PRP
M11657993/69947959/163211903 : 20ED77EA33CF5E8E
PRP proof power = 8
PRP: Verified
Proof certified good
2008-09-08Will EdgingtonF
Factor: 163211903