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
9677929
Composite, with 1 known prime factor. Cofactor is composite.
Trial Factored to 269
TF target 268
Factored
FactorDigitsBitsDate
30722604571498496811961.4old
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors		ShiftTypeBase
Verified
PRP without proof (not generated)
2019-10-11mnd9EC39B1EF0113FDFA1139801553
Verified
Certified Good
2020-12-21storm5510EC39B1EF0113FDFA1172887453
History
DateUserTypeResult
2026-01-17Mingye WangNF-PM1B1=1700000, B2=5325375510
2025-12-10Mingye WangNFno factor TF: 68-69
2020-12-21curtiscCERT
Proof certified good
2020-12-21storm5510C-PRPM9677929/3072260457149849681 : EC39B1EF0113FDFA
Proof Certified Good

Proof Power: 8

2019-10-11mnd9C-PRPM9677929/3072260457149849681 : EC39B1EF0113FDFA
1999-05-23carlo_baffaFFactor: 3072260457149849681