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

PrimeNet Exponent Status

Exponent Range:





MnDetails
9613979
Composite, with 1 known prime factor. Cofactor is composite.
Trial Factored to 269
TF target 268
Factored
FactorDigitsBitsDate
3452253099740562491858.3old
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors		ShiftTypeBase
Verified
PRP without proof (not generated)
2019-10-03mnd9AFCEB3D9094BFAF31679120153
Verified
Certified Good
2020-12-15storm5510AFCEB3D9094BFAF31447811053
History
DateUserTypeResult
2025-12-08Mingye WangNF-PM1B1=1700000, B2=4870535670
2025-12-02Mingye WangNFno factor TF: 68-69
2020-12-15curtiscCERT
Proof certified good
2020-12-15storm5510C-PRP
Proof Certified Good

Proof Power: 8

2019-10-03mnd9C-PRP
M9613979/345225309974056249 : AFCEB3D9094BFAF3
1999-05-30-anonymous-FFactor: 345225309974056249