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
11500649Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 273
TF target 268
P-1
B1 = 2000000
B2 = 5585184150
ECM
DigitsB1Curves
25500002 / 280
Estimated T-Level: 20.0 ⓘ
LL
StatusDateUserResidueShift
Bad2001-10-20Alva DuckwallF0112FD5DBC32A6910002304
Verified2002-12-02Ars Technica Team Prime Rib8E62B5F7F587833D9696858
Verified2004-03-01Ars Technica Team Prime Rib8E62B5F7F587833D968264
Verified2004-05-11S574838E62B5F7F587833D5451824
History
DateUserTypeResult
2024-11-17TheJudgerNF
no factor from 2^72 to 2^73
2024-03-27linamentNF-PM1
B1=2000000, B2=5585184150
2021-10-02Dylan DelgadoNF-PM1
B1=1800000, B2=120600000
2021-09-14LordJuliusNF
no factor from 2^69 to 2^72
2018-01-10ramgeisNF
no factor from 2^68 to 2^69
2018-01-10ramgeisNF
no factor from 2^67 to 2^68
2016-01-15VictordeHollanderNF
no factor from 2^66 to 2^67
2014-12-20NesowaNF
no factor from 2^65 to 2^66
2014-10-12ThaNF-PM1
B1=300000, B2=6000000, E=12
2013-11-07lycornNF
no factor from 2^64 to 2^65