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
9651457
Composite, with 2 known prime factors. Cofactor is composite.
Trial Factored to 269
TF target 268
Factored
FactorDigitsBitsDate
57908743825.8old
150384949362071443.82008-09-30 23:57:55
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors		ShiftTypeBase
Verified
PRP without proof (not generated)
2019-10-24mnd95DF225C0FA1AFEE32136553253
Verified
Certified Good
2020-12-18storm55105DF225C0FA1AFEE32203541953
History
DateUserTypeResult
2026-01-06Mingye WangNF-PM1B1=1700000, B2=3942818880
2025-12-07Mingye WangNFno factor TF: 68-69
2020-12-19Yves de WandelaarCERT
Proof certified good
2020-12-18storm5510C-PRPM9651457/57908743/15038494936207 : 5DF225C0FA1AFEE3
Proof Certified Good

Proof Power: 8

2019-10-24mnd9C-PRPM9651457/57908743/15038494936207 : 5DF225C0FA1AFEE3
2008-09-30markrFFactor: 15038494936207