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:










MnStatusDetails
42183223TF
No factors below 273
TF target 272
P-1
B1 = 380000
B2 = 1900000
LL
StatusDateUserResidueShift
Verified2009-04-21-Anonymous-EC0A45990F429DB637185417
Verified2016-01-21ManuelJCEC0A45990F429DB634437066
History
DateUserTypeResult
2022-05-01RichD0NF
no factor from 2^72 to 2^73
2016-01-21ManuelJCC-LL
EC0A45990F429DB6
2015-09-28AirSquirrelsNF
no factor from 2^71 to 2^72
2015-03-09Random GPUsNF
no factor from 2^70 to 2^71
2015-01-20el groccoNF
no factor from 2^69 to 2^70
2009-04-21-Anonymous-C-LL
EC0A45990F429DB6