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
6768221
Composite, with 1 known prime factor. Cofactor is composite.
Trial Factored to 268
TF target 267
Factored
FactorDigitsBitsDate
54145769825.7old
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors		ShiftTypeBase
Verified
PRP without proof (not generated)
2018-01-09Oliver Kruse3BC2D7436B8FA9A71208269353
Verified
PRP without proof (not generated)
2018-12-13storm55103BC2D7436B8FA9A71382623453
History
DateUserTypeResult
2023-12-24Stef42NF-PM1B1=281000, B2=449085000
2018-12-13storm5510C-PRPM6768221/54145769 : 3BC2D7436B8FA9A7
2018-01-09Oliver KruseC-PRPM6768221/54145769 : 3BC2D7436B8FA9A7