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

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MnStatusDetails
11626961Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
17440441511030.7old
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2021-10-04kracker50CFD584259D56381569033253
Verified2021-10-12LaurV50CFD584259D56381398163553
History
DateUserTypeResult
2025-06-10yuriy_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
2025-03-11yuriy_5-1NF-PM1
B1=6976176, B2=448598700
2025-02-10yuriy_5-1NF-PM1
B1=4650784, B2=598008840
2024-06-17yuriy_5-1NF-PM1
B1=262144, B2=137022600
2021-10-12Stefan G HoffmannCERT
PRP Certification
Proof certified good
2021-10-12LaurVC-PRP
M11626961/1744044151 : 50CFD584259D5638
PRP proof power = 8
PRP: Verified
Proof certified good
2021-10-04krackerC-PRP
M11626961/1744044151 : 50CFD584259D5638
PRP: Verified
PRP without proof (not generated)