Marin Mersenne 2^P-1
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GIMPS
Finding World Record Primes Since 1996

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Exponent Range:










MnStatusDetails
6950149TF
No factors below 272
TF target 267
P-1
B1 = 3500000
B2 = 9616446840
ECM
DigitsB1Curves
25500006 / 280
Estimated T-Level: 20.1
LL
StatusDateUserResidueShift
VerifiedPaul Victor Novarese373C8BEFEED224EA0
Verified2000-03-01david nicol373C8BEFEED224EA0
Verified2015-11-13MadPoo373C8BEFEED224EA1342927
History
DateUserTypeResult
2023-08-22ThaNF-PM1
B1=3500000, B2=9616446840
2021-09-25SRBaseNF
no factor from 2^71 to 2^72
2021-08-11SRBaseNF
no factor from 2^70 to 2^71
2021-07-31takahashiNF
no factor from 2^69 to 2^70
2021-06-14takahashiNF-PM1
B1=1000000, B2=30000000, E=12
2020-05-01TJAOINF
no factor from 2^68 to 2^69
2019-05-11takahashiNF-PM1
B1=300000, B2=5000000, E=6
2018-02-27-Anonymous-NF
no factor from 2^67 to 2^68
2016-04-05Gordon SpenceNF
no factor from 2^66 to 2^67
2015-11-13MadPooC-LL
373C8BEFEED224EA
2015-06-26VictordeHollanderNF
no factor from 2^65 to 2^66
2014-02-16lycornNF
no factor from 2^64 to 2^65
2014-02-09NesowaNF
no factor from 2^63 to 2^64
2009-06-19Roman MaznichenkoNF-PM1
B1=85000, B2=1615000, E=6