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:










MnStatusDetails
42277981TF
No factors below 273
TF target 272
P-1
B1 = 505000
B2 = 13761250
LL
StatusDateUserResidueShift
Verified2009-05-10WWU-CS4BD00195345191C14538599
Verified2017-10-22Dmitriy Degtiarev4BD00195345191C114759336
History
DateUserTypeResult
2022-04-15RichD0NF
no factor from 2^72 to 2^73
2017-10-22Dmitriy DegtiarevC-LL
4BD00195345191C1
2015-09-02AirSquirrelsNF
no factor from 2^71 to 2^72
2015-03-16Mark RoseNF
no factor from 2^70 to 2^71
2015-01-22chalsallNF
no factor from 2^69 to 2^70
2012-11-15Carsten KossendeyNF
no factor from 2^68 to 2^69
2009-05-10WWU-CSC-LL
4BD00195345191C1