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
8211397TF
No factors below 272
TF target 267
P-1
B1 = 3000000
B2 = 4532960250
ECM
DigitsB1Curves
25500003 / 280
Estimated T-Level: 20.1 ⓘ
LL
StatusDateUserResidueShift
Verified2000-01-12Jean Marie RAULINFA836143E3437E2C214608
Verified2003-03-27Ars Technica Team Prime RibFA836143E3437E2C2126688
History
DateUserTypeResult
2022-10-26linamentNF-PM1
B1=3000000, B2=4532960250
2022-01-29axnNF-PM1
B1=1600000, B2=3386573190
2021-10-05SRBaseNF
no factor from 2^71 to 2^72
2021-08-22krackerNF
no factor from 2^70 to 2^71
2021-08-19SRBaseNF
no factor from 2^69 to 2^70
2020-03-01USAFSSNF-PM1
B1=475000, B2=16150000, E=12
2020-02-07TJAOINF
no factor from 2^68 to 2^69
2018-07-16chuenkitNF
no factor from 2^67 to 2^68
2015-12-10snme2pm1NF
no factor from 2^66 to 2^67
2015-06-03VictordeHollanderNF
no factor from 2^65 to 2^66
2013-12-28David CampeauNF
no factor from 2^64 to 2^65
2012-10-28NesowaNF-PM1
B1=95000, B2=1638750, E=6
2011-08-11Carsten KossendeyNF
no factor from 2^63 to 2^64