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
8453999
Composite, with 4 known prime factors. Cofactor is composite.
Trial Factored to 268
TF target 268
Factored
FactorDigitsBitsDate
16907999824.0old
272049687831134.72008-09-08 04:33:26
1145590626586263008232166.62020-06-30 13:27:17
1538105263700327652972167.12021-08-03 09:50:10
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors		ShiftTypeBase
Factored
PRP without proof (not generated)
2018-10-29rucio2C8B29DA639FB4BD2336571253
Factored
PRP without proof (not generated)
2020-06-06oodaira2C8B29DA639FB4BD2780731953
Factored
PRP without proof (not generated)
2020-07-03Sébastien BROUCKE2C8B29DA639FB4BD337400253
Verified
Certified Good
2021-08-09RichD02C8B29DA639FB4BD4132952653
History
DateUserTypeResult
2024-05-27Stef42NF-PM1B1=4000000, B2=7668766560
2021-08-09Scott HemphillCERT
Proof certified good
2021-08-09RichD0C-PRPM8453999/16907999/27204968783/114559062658626300823/153810526370032765297 : 2C8B29DA639FB4BD
Proof Certified Good

Proof Power: 8

2021-08-03TJAOIFFactor: 153810526370032765297
2020-07-03Sébastien BROUCKEC-PRPM8453999/16907999/27204968783/114559062658626300823 : 2C8B29DA639FB4BD
2020-06-30TJAOIFFactor: 114559062658626300823
2020-06-06oodairaC-PRPM8453999/16907999/27204968783 : 2C8B29DA639FB4BD
2018-10-29rucioC-PRPM8453999/16907999/27204968783 : 2C8B29DA639FB4BD
2008-09-08Will EdgingtonFFactor: 27204968783