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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MnDetails
2297951
Composite, with 1 known prime factor. Cofactor is composite.
Trial Factored to 268
TF target 262
Factored
FactorDigitsBitsDate
18383608011030.8old
ECM
DigitsB1Curves
2550000280 / 280
30250000139 / 640
Estimated T-Level: 26.1 ⓘ
TF below 2^82 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors		ShiftTypeBase
Verified
PRP without proof (not generated)
2017-10-11Oliver Kruse32F454759F8B26001013
Verified
PRP without proof (not generated)
2017-11-22storm551032F454759F8B2600118123613
History
DateUserTypeResult
2017-11-22storm5510C-PRP
M2297951/1838360801 : 32F454759F8B2600
2017-10-11Oliver KruseC-PRPM2297951/1838360801 : 32F454759F8B2600
2016-04-29alpertronNF-PM1B1=500000, B2=15000000, E=12