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
50978381TF
No factors below 274
TF target 273
P-1
B1 = 1000000
B2 = 24000000
LL
StatusDateUserResidueShift
Bad2011-06-09soldcake6226BDCC2A8BEA7733589643
Bad2020-04-11roemer2201FA2AD5DA27B2049A34925777
Verified2020-04-16riccardo uberti861BD9B8E73E5BDC41680582
Verified2020-04-22Team_Inspector861BD9B8E73E5BDC16258798
History
DateUserTypeResult
2020-04-22Team_InspectorC-LL
861BD9B8E73E5BDC
2020-04-16riccardo ubertiC-LL
861BD9B8E73E5BDC
2020-04-13riccardo ubertiNF-PM1
B1=1000000, B2=24000000, E=12
2020-04-11roemer2201C-LL
FA2AD5DA27B2049A
2018-11-04Mark RoseNF
no factor from 2^73 to 2^74
2015-12-21Judge HaleNF
no factor from 2^72 to 2^73
2015-11-26Judge HaleNF
no factor from 2^71 to 2^72
2015-05-15Mark RoseNF
no factor from 2^70 to 2^71
2015-01-14monstNF
no factor from 2^69 to 2^70
2011-06-09soldcakeC-LL
6226BDCC2A8BEA77
2011-04-19soldcakeNF-PM1
B1=590000, B2=14307500
2008-12-08curtiscNF
no factor to 2^69
2008-10-08DerekNF
no factor to 2^64