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
2270251
Composite, with 1 known prime factor. Cofactor is composite.
Trial Factored to 268
TF target 262
Factored
FactorDigitsBitsDate
57028705131032.4old
ECM
DigitsB1Curves
2550000280 / 280
30250000301 / 640
Estimated T-Level: 27.4 ⓘ
TF below 2^86 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 Kruse77059C7888805E2C1013
Verified
PRP without proof (not generated)
2017-11-21storm551077059C7888805E2C175976813
History
DateUserTypeResult
2017-11-21storm5510C-PRPM2270251/5702870513 : 77059C7888805E2C
2017-10-11Oliver KruseC-PRPM2270251/5702870513 : 77059C7888805E2C
2016-04-27alpertronNF-PM1B1=500000, B2=15000000, E=12