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
11623267Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 275
TF target 268
P-1
B1 = 12582912
B2 = 109573764300
ECM
DigitsB1Curves
2550000106 / 280
Estimated T-Level: 21.9 ⓘ
LL
StatusDateUserResidueShift
Verified2001-06-09Dave AndersonE20BB8946B74F6919204540
Verified2004-11-30Ars Technica Team Prime RibE20BB8946B74F6911980251
History
DateUserTypeResult
2025-02-10yuriy_5-1NF
no factor from 2^74 to 2^75
2024-11-22yuriy_5-1NF
no factor from 2^73 to 2^74
2024-08-16vshNF
no factor from 2^72 to 2^73
2024-04-29yuriy_5-1NF-PM1
B1=12582912, B2=109573764300
2022-12-23Naegi MakotoNF
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
2019-11-17riccardo ubertiNF-PM1
B1=430000, B2=8500000, E=12
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