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

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MnStatusDetails
11687129Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
70163678951511342.7old
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2021-10-23LaurV01E1F5D67FB6449D143741453
History
DateUserTypeResult
2025-06-19yuriy_5-1NF
no factor from 2^70 to 2^71
2025-05-07yuriy_5-1NF
no factor from 2^69 to 2^70
2025-03-21yuriy_5-1NF
no factor from 2^68 to 2^69
2025-03-11yuriy_5-1NF-PM1
B1=7012272, B2=453435840
2025-02-14yuriy_5-1NF-PM1
B1=4674848, B2=604581120
2024-06-17yuriy_5-1NF-PM1
B1=262144, B2=137022600
2021-10-23curtiscCERT
PRP Certification
Proof certified good
2021-10-23LaurVC-PRP
M11687129/7016367895151 : 01E1F5D67FB6449D
PRP proof power = 8
PRP: Verified
Proof certified good