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
8121689TF
No factors below 273
TF target 267
P-1
B1 = 1500000
B2 = 809169570
ECM
DigitsB1Curves
25500006 / 280
Estimated T-Level: 20.1 ⓘ
LL
StatusDateUserResidueShift
Verified1999-10-07John Allen6D06E2A1A087F0925386608
Verified2002-08-17Paul Victor Novarese6D06E2A1A087F0925470780
History
DateUserTypeResult
2022-09-04FlaukrotistNF
no factor from 2^72 to 2^73
2022-03-21FlaukrotistNF-PM1
B1=1500000, B2=809169570
2021-10-13SRBaseNF
no factor from 2^71 to 2^72
2021-08-31SRBaseNF
no factor from 2^70 to 2^71
2021-08-20SRBaseNF
no factor from 2^69 to 2^70
2019-12-02mnd9NF
no factor from 2^68 to 2^69
2018-07-03chuenkitNF
no factor from 2^67 to 2^68
2015-11-30snme2pm1NF
no factor from 2^66 to 2^67
2015-05-25snme2pm1NF
no factor from 2^65 to 2^66
2013-12-26David CampeauNF
no factor from 2^64 to 2^65
2013-09-15AxelssonNF
no factor from 2^63 to 2^64
2012-09-22James HeinrichNF-PM1
B1=215000, B2=5375000, E=6