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
31062223Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 273
TF target 271
P-1
B1 = 415000
B2 = 8092500
ECM
DigitsB1Curves
25500003 / 280
Estimated T-Level: 20.1 ⓘ
LL
StatusDateUserResidueShift
Verified2006-08-14davy6187D8C79D4BF6646343167
Verified2013-06-07Richard6187D8C79D4BF66422170142
History
DateUserTypeResult
2022-10-24Sid & AndyNF
no factor from 2^72 to 2^73
2021-10-03ATHNF-PP1
Start=2/7, B1=300000, B2=6300000
2019-06-22Architects CubedNF-PM1
B1=415000, B2=8092500, E=12
2019-06-21LaurVNF
no factor from 2^71 to 2^72
2018-11-28ramgeisNF
no factor from 2^70 to 2^71
2013-06-07RichardC-LL
6187D8C79D4BF664
2013-01-29LaurVNF
no factor from 2^69 to 2^70
2012-06-03bcp19NF
no factor from 2^68 to 2^69