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
9641633
Composite: 2 known prime factors
Trial Factored to 269
TF target 268
Factored
FactorDigitsBitsDate
160552472716011443.9old
52988051761506651297316092582.12025-12-29 13:20:24
P-1 factors
DateFactorsB1B2
2025-12-295298805176150665129731609
17000003942818880
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors
ShiftTypeBase
Factored
PRP without proof (not generated)
2019-10-06mnd97B62FDBE99A0D6C21415504353
Factored
Certified Good
2020-12-18storm55107B62FDBE99A0D6C21361749253
History
DateUserTypeResult
2025-12-29Mingye WangF-PM1Factor: 5298805176150665129731609 / B1=1700000, B2=3942818880
2025-12-06Mingye WangNFno factor TF: 68-69
2020-12-18Ben DeloCERT
Proof certified good
2020-12-18storm5510C-PRPM9641633/16055247271601 : 7B62FDBE99A0D6C2
Proof Certified Good

Proof Power: 8

2019-10-06mnd9C-PRPM9641633/16055247271601 : 7B62FDBE99A0D6C2