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
11622701Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 275
TF target 268
P-1
B1 = 12668746
B2 = 111034753830
ECM
DigitsB1Curves
255000083 / 280
Estimated T-Level: 21.5 ⓘ
LL
StatusDateUserResidueShift
Verified2001-04-15Stephen WoodF97DFD304371CD667575697
Verified2004-07-13Ars Technica Team Prime RibF97DFD304371CD664369936
History
DateUserTypeResult
2025-02-10yuriy_5-1NF
no factor from 2^74 to 2^75
2024-09-02yuriy_5-1NF
no factor from 2^73 to 2^74
2024-08-08yuriy_5-1NF
no factor from 2^72 to 2^73
2024-05-21yuriy_5-1NF-PM1
B1=12668746, B2=111034753830
2023-04-07riccardo ubertiNF-PP1
Start=6/5, B1=2300000, B2=48000000
2023-02-17riccardo ubertiNF-PP1
Start=2/7, B1=2000000, B2=40000000
2022-12-31riccardo ubertiNF-PM1
B1=1500000, B2=102179220
2022-12-23riccardo ubertiNF
no factor from 2^71 to 2^72
2021-08-14SRBaseNF
no factor from 2^70 to 2^71
2021-08-06SRBaseNF
no factor from 2^69 to 2^70
2018-01-01ramgeisNF
no factor from 2^68 to 2^69
2018-01-01ramgeisNF
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
2013-11-04lycornNF
no factor from 2^64 to 2^65
2012-03-20James HeinrichNF-PM1
B1=225000, B2=5400000, E=6