Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

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Exponent Range:





MnDetails
2365999
Composite, with 2 known prime factors. Cofactor is composite.
Trial Factored to 268
TF target 263
Factored
FactorDigitsBitsDate
9728609328171239.8old
2135209128098189761000732477.52024-01-03 00:34:49
ECM
DigitsB1Curves
2550000280 / 280
30250000127 / 640
Estimated T-Level: 26.0
TF below 2^81 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors
ShiftTypeBase
Factored
PRP without proof (not generated)
2017-10-12Oliver Kruse277C75E84E724CC11114463053
Factored
PRP without proof (not generated)
2017-11-24storm5510277C75E84E724CC1184951953
Verified
Certified Good
2024-01-03Naegi Makoto277C75E84E724CC1298554653
History
DateUserTypeResult
2024-01-04LOBESCERT
Proof certified good
2024-01-03Naegi MakotoC-PRPM2365999/972860932817/213520912809818976100073 : 277C75E84E724CC1
Proof Certified Good

Proof Power: 7

2024-01-03Andrew BF-ECMFactor: 213520912809818976100073 / ECM curve 29, B1=50000, B2=5600000, Montgomery Sigma=7656029243479837
2018-04-27alpertronNF-PM1B1=2000000, B2=60000000, E=12
2017-11-24storm5510C-PRPM2365999/972860932817 : 277C75E84E724CC1
2017-10-12Oliver KruseC-PRPM2365999/972860932817 : 277C75E84E724CC1