Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

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Exponent Range:










MnStatusDetails
6993823TF
No factors below 272
TF target 267
P-1
B1 = 3500000
B2 = 9616446840
ECM
DigitsB1Curves
25500006 / 280
Estimated T-Level: 20.1 ⓘ
LL
StatusDateUserResidueShift
Verified1999-03-26Richard Wilson5CB5742D4E96FE260
Verified2001-11-24Michael Imamura5CB5742D4E96FE263614434
History
DateUserTypeResult
2023-09-25ThaNF-PM1
B1=3500000, B2=9616446840
2023-07-19takahashiNF-PM1
B1=2500000, B2=50176980
2021-09-30SRBaseNF
no factor from 2^71 to 2^72
2020-09-16takahashiNF
no factor from 2^70 to 2^71
2020-07-26takahashiNF
no factor from 2^69 to 2^70
2020-04-03TJAOINF
no factor from 2^68 to 2^69
2020-02-04takahashiNF-PM1
B1=600000, B2=12000000, E=12
2018-02-27-Anonymous-NF
no factor from 2^67 to 2^68
2016-04-27Gordon SpenceNF
no factor from 2^66 to 2^67
2015-07-03VictordeHollanderNF
no factor from 2^65 to 2^66
2014-02-14lycornNF
no factor from 2^64 to 2^65
2014-02-09NesowaNF
no factor from 2^63 to 2^64
2011-11-30James HeinrichNF-PM1
B1=135000, B2=2835000, E=6