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
8400461
Composite, with 2 known prime factors. Cofactor is composite.
Trial Factored to 268
TF target 268
Factored
FactorDigitsBitsDate
55345155223502364411962.3old
2329663590238834723432167.72023-01-17 09:50:41
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors
ShiftTypeBase
Factored
PRP without proof (not generated)
2018-10-22rucioC16B459B18D276E71134002453
Factored
PRP without proof (not generated)
2020-05-19Luigi MorelliC16B459B18D276E7192913353
Verified
Certified Good
2023-01-24LordJuliusC16B459B18D276E72567222453
History
DateUserTypeResult
2024-05-12Stef42NF-PM1B1=1025000, B2=2213224650
2023-01-25Ben DeloCERT
Proof certified good
2023-01-24LordJuliusC-PRPM8400461/5534515522350236441/232966359023883472343 : C16B459B18D276E7
Proof Certified Good

Proof Power: 8

2023-01-17TJAOIFFactor: 232966359023883472343
2020-05-19Luigi MorelliC-PRPM8400461/5534515522350236441 : C16B459B18D276E7
2018-10-22rucioC-PRPM8400461/5534515522350236441 : C16B459B18D276E7
1999-06-06-anonymous-NFno factor TF: 1-62
1998-10-04-anonymous-FFactor: 5534515522350236441
1998-09-20-anonymous-NFno factor TF: 1-62