Marin Mersenne 2^P-1
Username
Password
Forgot password?
Black
Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

Exponent Range:





MnDetails
9657787
Composite: 2 known prime factors
Trial Factored to 269
TF target 268
Factored
FactorDigitsBitsDate
1405499480511671547.0old
12318495390381292859932270.12026-01-01 23:08:15
P-1 factors
DateFactorsB1B2
2026-01-011231849539038129285993
17000003721726470
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors
ShiftTypeBase
Factored
PRP without proof (not generated)
2019-10-11mnd9A8870065A4544ED51550147753
Factored
Certified Good
2020-12-19storm5510A8870065A4544ED51555462853
History
DateUserTypeResult
2026-01-01Mingye WangF-PM1Factor: 1231849539038129285993 / B1=1700000, B2=3721726470
2025-12-08Mingye WangNFno factor TF: 68-69
2020-12-19Ben DeloCERT
Proof certified good
2020-12-19storm5510C-PRPM9657787/140549948051167 : A8870065A4544ED5
Proof Certified Good

Proof Power: 8

2019-10-11mnd9C-PRPM9657787/140549948051167 : A8870065A4544ED5