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
42220837TF
No factors below 273
TF target 272
P-1
B1 = 380000
B2 = 1900000
LL
StatusDateUserResidueShift
Verified2008-08-07Ahmer Ali102CF6C736970D9B40015126
Verified2017-01-26Mark Rose102CF6C736970D9B38897874
History
DateUserTypeResult
2022-04-23RichD0NF
no factor from 2^72 to 2^73
2017-01-26Mark RoseC-LL
102CF6C736970D9B
2015-08-30AirSquirrelsNF
no factor from 2^71 to 2^72
2015-03-14Mark RoseNF
no factor from 2^70 to 2^71
2015-01-20Mark RoseNF
no factor from 2^69 to 2^70