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
42120517TF
No factors below 273
TF target 272
P-1
B1 = 405000
B2 = 3240000
LL
StatusDateUserResidueShift
Verified2009-01-10Team Prime Rib202BE104879AE4DA25410020
Verified2016-02-22yponomarev202BE104879AE4DA15303910
History
DateUserTypeResult
2020-05-11Sid & AndyNF
no factor from 2^72 to 2^73
2016-02-22yponomarevC-LL
202BE104879AE4DA
2015-08-30AirSquirrelsNF
no factor from 2^71 to 2^72
2015-03-09Mark RoseNF
no factor from 2^70 to 2^71
2015-01-19chalsallNF
no factor from 2^69 to 2^70
2009-01-10Team Prime RibC-LL
202BE104879AE4DA