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
42106663TF
No factors below 273
TF target 272
P-1
B1 = 435000
B2 = 3588750
LL
StatusDateUserResidueShift
Verified2008-09-16Ars Technica Team Prime Rib4FF48CC7C49442982148329
Verified2017-09-27Sergey Nosov4FF48CC7C494429829583933
History
DateUserTypeResult
2020-05-01Sid & AndyNF
no factor from 2^72 to 2^73
2017-09-27Sergey NosovC-LL
4FF48CC7C4944298
2015-08-26AirSquirrelsNF
no factor from 2^71 to 2^72
2015-03-03Mark RoseNF
no factor from 2^70 to 2^71
2015-01-17Mark RoseNF
no factor from 2^69 to 2^70
2014-03-03bayanneNF
no factor from 2^68 to 2^69