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

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MnStatusDetails
11685031Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
205259877948947467372064.2old
LL
StatusDateUserResidueShift
Verified (Factored)2001-06-17C. Cooper / S. BooneF6B46E6B52FB6DFF10071701
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2021-10-13Chad Steenerson E8DA40D523CEE0721264898453
History
DateUserTypeResult
2025-06-17yuriy_5-1NF
no factor from 2^70 to 2^71
2025-05-07yuriy_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=7011018, B2=453435840
2024-08-22yuriy_5-1NF-PM1
B1=2800000, B2=5965528800
2021-10-13Will EdgingtonCERT
PRP Certification
Proof certified good
2021-10-13Chad Steenerson C-PRP
M11685031/20525987794894746737 : E8DA40D523CEE072
PRP proof power = 8
PRP: Verified
Proof certified good