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

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MnStatusDetails
11667547Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
263241575047707681192064.52013-11-03 00:31:04
LL
StatusDateUserResidueShift
Verified (Factored)2001-07-07Shaun Case1F6207D209E7511610221207
Verified (Factored)2005-02-18Daniel Swanson1F6207D209E751165760702
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2021-10-05RichD0C7A4109D4723B59311044145953
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=7000524, B2=453435840
2024-08-22yuriy_5-1NF-PM1
B1=2800000, B2=6382864950
2021-10-06BlueBoxCERT
PRP Certification
Proof certified good
2021-10-05RichD0C-PRP
M11667547/26324157504770768119 : C7A4109D4723B593
PRP proof power = 8
PRP: Verified
Proof certified good
2013-11-03lycornF
Factor: 26324157504770768119 / TF: 64-65*