Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

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MnDetails
9641441
Composite, with 1 known prime factor. Cofactor is composite.
Trial Factored to 269
TF target 268
Factored
FactorDigitsBitsDate
119731064647532363032063.4old
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors		ShiftTypeBase
Verified
PRP without proof (not generated)
2019-10-06mnd9670050D9AA1200211367611153
Verified
Certified Good
2020-12-18storm5510670050D9AA1200211142507253
History
DateUserTypeResult
2025-12-29Mingye WangNF-PM1B1=1700000, B2=3942818880
2025-12-06Mingye WangNFno factor TF: 68-69
2020-12-18curtiscCERT
Proof certified good
2020-12-18storm5510C-PRP
Proof Certified Good

Proof Power: 8

2019-10-06mnd9C-PRP
M9641441/11973106464753236303 : 670050D9AA120021
1999-06-06dtlgcFFactor: 11973106464753236303
1999-05-30dtlgcFFactor: 11973106464753236303