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
11226671Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 273
TF target 268
P-1
B1 = 10000000
B2 = 20021278200
ECM
DigitsB1Curves
25500002 / 280
Estimated T-Level: 20.0 ⓘ
LL
StatusDateUserResidueShift
Verified2001-10-13Simon Fietze238F207541377A8F5831331
Verified2004-07-26Mark Thakkar238F207541377A8F2164818
History
DateUserTypeResult
2025-02-06James HeinrichNF
no factor from 2^72 to 2^73
2024-07-26vshNF
no factor from 2^72 to 2^73
2024-06-08vshNF-PM1
B1=10000000, B2=20021278200
2024-04-25vshNF-PM1
B1=7125888, B2=9264393600
2024-03-29vshNF-PM1
B1=3562944, B2=4549683600
2024-03-28vshNF-PM1
B1=1781472, B2=1480351950
2021-10-29SRBaseNF
no factor from 2^71 to 2^72
2021-08-16SRBaseNF
no factor from 2^70 to 2^71
2021-08-06SRBaseNF
no factor from 2^69 to 2^70
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
2015-03-14NumberwangNF
no factor from 2^65 to 2^66
2013-11-23lycornNF
no factor from 2^64 to 2^65
2012-07-15NesowaNF-PM1
B1=140000, B2=2870000, E=6