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

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MnStatusDetails
11657717Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
16787112491030.6old
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2021-10-01mrh66DDC8CAB1F7CDA41336918653
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=6994626, B2=453435840
2025-02-10yuriy_5-1NF-PM1
B1=4663084, B2=598008840
2024-06-17yuriy_5-1NF-PM1
B1=262144, B2=137022600
2021-10-01Ben DeloCERT
PRP Certification
Proof certified good
2021-10-01mrhC-PRP
M11657717/1678711249 : 66DDC8CAB1F7CDA4
PRP proof power = 8
PRP: Verified
Proof certified good