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
6973831TF
No factors below 272
TF target 267
P-1
B1 = 4200000
B2 = 4046614110
ECM
DigitsB1Curves
25500009 / 280
Estimated T-Level: 20.2 ⓘ
LL
StatusDateUserResidueShift
Verified1999-09-14Marc Getty / Phil FizurE326AA612657C3AD0
Verified2001-12-22Adam AutonE326AA612657C3AD4309489
History
DateUserTypeResult
2023-12-01Sid & AndyNF-PM1
B1=4200000, B2=4046614110
2021-12-07Seth_TrNF-PM1
B1=2000000, B2=258849360
2021-09-25SRBaseNF
no factor from 2^71 to 2^72
2021-09-06SRBaseNF
no factor from 2^70 to 2^71
2021-08-07takahashiNF
no factor from 2^69 to 2^70
2020-04-24TJAOINF
no factor from 2^68 to 2^69
2020-01-28takahashiNF-PM1
B1=600000, B2=12000000, E=12
2018-02-25-Anonymous-NF
no factor from 2^67 to 2^68
2016-04-26Gordon SpenceNF
no factor from 2^66 to 2^67
2015-07-03VictordeHollanderNF
no factor from 2^65 to 2^66
2014-02-15lycornNF
no factor from 2^64 to 2^65
2014-02-09NesowaNF
no factor from 2^63 to 2^64
2011-12-07James HeinrichNF-PM1
B1=135000, B2=2835000, E=6