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

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MnStatusDetails
11666987Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
249918995206491444.5old
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2021-10-06LaurV54272A73AB0BE39311086095753
History
DateUserTypeResult
2025-06-13yuriy_5-1NF
no factor from 2^70 to 2^71
2025-05-06yuriy_5-1NF
no factor from 2^69 to 2^70
2025-03-28yuriy_5-1NF
no factor from 2^68 to 2^69
2025-03-11yuriy_5-1NF-PM1
B1=7000188, B2=453435840
2025-02-10yuriy_5-1NF-PM1
B1=4666792, B2=598008840
2024-06-17yuriy_5-1NF-PM1
B1=262144, B2=137022600
2021-10-06Dr. DwayneCERT
PRP Certification
Proof certified good
2021-10-06LaurVC-PRP
M11666987/24991899520649 : 54272A73AB0BE393
PRP proof power = 8
PRP: Verified
Proof certified good