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
2296171
Composite, with 1 known prime factor. Cofactor is composite.
Trial Factored to 268
TF target 262
Factored
FactorDigitsBitsDate
11389008171030.1old
ECM
DigitsB1Curves
2550000280 / 280
30250000148 / 640
Estimated T-Level: 26.2 ⓘ
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 Kruse623DA0C61B9E4E7B1013
Verified
PRP without proof (not generated)
2017-11-22storm5510623DA0C61B9E4E7B1103004713
History
DateUserTypeResult
2017-11-22storm5510C-PRP
M2296171/1138900817 : 623DA0C61B9E4E7B
2017-10-11Oliver KruseC-PRPM2296171/1138900817 : 623DA0C61B9E4E7B
2016-04-27alpertronNF-PM1B1=500000, B2=15000000, E=12