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
11205067Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 274
TF target 268
TF below 2^80 is very unlikely to find new factors due to ECM effort.
P-1
B1 = 100000000
B2 = 200003703900
ECM
DigitsB1Curves
2550000280 / 280
3025000058 / 640
Estimated T-Level: 25.5 ⓘ
LL
StatusDateUserResidueShift
Verified2001-02-25Jeff Panza9A2ED9257F0778396692572
Verified2004-01-27Marc Getty / Phil Fizur9A2ED9257F0778399235276
History
DateUserTypeResult
2025-08-10vshNF-PM1
B1=100000000, B2=200003703900
2025-07-17vshNF-PM1
B1=100000000, B2=100072579530
2025-02-02James HeinrichNF
no factor from 2^72 to 2^74
2025-01-20vshNF
no factor from 2^73 to 2^74
2024-07-08vshNF
no factor from 2^72 to 2^73
2024-05-07alex4NF-PM1
B1=17200000, B2=64479695280
2024-04-15vshNF-PM1
B1=8600000, B2=14985097050
2024-04-10vshNF-PM1
B1=4300000, B2=5704787550
2021-10-30SRBaseNF
no factor from 2^71 to 2^72
2021-08-13SRBaseNF
no factor from 2^70 to 2^71
2021-08-06SRBaseNF
no factor from 2^69 to 2^70
2020-04-28riccardo ubertiNF-PM1
B1=430000, B2=8500000, E=12
2017-12-27ramgeisNF
no factor from 2^68 to 2^69
2017-12-27ramgeisNF
no factor from 2^67 to 2^68
2015-12-28VictordeHollanderNF
no factor from 2^66 to 2^67
2015-02-27NumberwangNF
no factor from 2^65 to 2^66
2013-11-22lycornNF
no factor from 2^64 to 2^65