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

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MnStatusDetails
11681623Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
152661970688915129932063.7old
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2021-10-09RichD06FDEBB2EF0706BA11859330353
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
2025-03-11yuriy_5-1NF-PM1
B1=7008972, B2=453435840
2024-08-22yuriy_5-1NF-PM1
B1=2800000, B2=5965528800
2021-10-09curtiscCERT
PRP Certification
Proof certified good
2021-10-09RichD0C-PRP
M11681623/15266197068891512993 : 6FDEBB2EF0706BA1
PRP proof power = 8
PRP: Verified
Proof certified good