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
8320409
Composite, with 3 known prime factors. Cofactor is composite.
Trial Factored to 268
TF target 268
Factored
FactorDigitsBitsDate
485937845276091445.5old
32131432477922631651.52008-09-08 04:30:16
11189115547197167535192269.92024-04-08 17:11:19
P-1 factors
DateFactorsB1B2
2024-04-081118911554719716753519
141000210169050
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors
ShiftTypeBase
Factored
PRP without proof (not generated)
2018-10-09ATH3028A3B27AE18F1B2309916353
Factored
PRP without proof (not generated)
2020-04-19Oliver Kruse3028A3B27AE18F1B2724440553
Verified
Certified Good
2024-04-14ee33t13028A3B27AE18F1B349482553
History
DateUserTypeResult
2025-04-21beepNF-PM1B1=1900000, B2=10261521270
2024-04-14Jeff SponaugleCERT
Proof certified good
2024-04-14ee33t1C-PRPM8320409/48593784527609/3213143247792263/1118911554719716753519 : 3028A3B27AE18F1B
Proof Certified Good

Proof Power: 8

2024-04-08Stef42F-PM1Factor: 1118911554719716753519 / B1=141000, B2=210169050
2020-04-19Oliver KruseC-PRPM8320409/48593784527609/3213143247792263 : 3028A3B27AE18F1B
2018-10-09ATHC-PRPM8320409/48593784527609/3213143247792263 : 3028A3B27AE18F1B
2008-09-08Will EdgingtonFFactor: 3213143247792263