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
6351613TF
No factors below 272
TF target 266
P-1
B1 = 4000000
B2 = 18004726740
ECM
DigitsB1Curves
25500006 / 280
Estimated T-Level: 20.1 ⓘ
LL
StatusDateUserResidueShift
VerifiedJan Neuhaus08FCF1D63FDF6E3E0
Verified1999-05-16Christopher Olcott08FCF1D63FDF6E3E2127118
History
DateUserTypeResult
2023-04-03linamentNF-PM1
B1=4000000, B2=18004726740
2023-04-02linamentNF-PM1
B1=3999900
2022-09-09takahashiNF-PM1
B1=2500000, B2=50028510
2022-06-17takahashiNF
no factor from 2^71 to 2^72
2021-12-26mikrNF
no factor from 2^70 to 2^71
2021-02-07takahashiNF
no factor from 2^69 to 2^70
2020-04-30takahashiNF
no factor from 2^68 to 2^69
2018-06-04ramgeisNF
no factor from 2^67 to 2^68
2016-04-02Gordon SpenceNF
no factor from 2^66 to 2^67
2016-02-23Mark RoseNF
no factor from 2^62 to 2^63
2015-10-20snme2pm1NF
no factor from 2^65 to 2^66
2014-10-09NesowaNF-PM1
B1=385000, B2=9721250, E=12
2014-08-21lycornNF
no factor from 2^64 to 2^65
2014-08-17NesowaNF
no factor from 2^63 to 2^64
2009-06-25Carsten KossendeyNF-PM1
B1=35000, B2=490000