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
11604871Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 275
TF target 268
P-1
B1 = 46419484
B2 = 140197877820
ECM
DigitsB1Curves
255000030 / 280
Estimated T-Level: 20.5 ⓘ
LL
StatusDateUserResidueShift
Verified2001-01-08Aaron B4260DAC2F08C0E8B9825676
Verified2005-04-02Ars Technica Team Prime Rib4260DAC2F08C0E8B1278839
History
DateUserTypeResult
2025-02-24yuriy_5-1NF-PM1
B1=46419484, B2=140197877820
2025-01-15yuriy_5-1NF
no factor from 2^74 to 2^75
2024-09-02yuriy_5-1NF
no factor from 2^73 to 2^74
2024-08-06yuriy_5-1NF
no factor from 2^72 to 2^73
2024-05-21yuriy_5-1NF-PM1
B1=12707336, B2=111034753830
2024-04-22yuriy_5-1NF-PM1
B1=2320990, B2=2343884004
2023-01-08Naegi MakotoNF
no factor from 2^71 to 2^72
2021-08-15SRBaseNF
no factor from 2^70 to 2^71
2021-08-06SRBaseNF
no factor from 2^69 to 2^70
2020-02-08riccardo ubertiNF-PM1
B1=430000, B2=8500000, E=12
2018-01-03ramgeisNF
no factor from 2^68 to 2^69
2018-01-03ramgeisNF
no factor from 2^67 to 2^68
2016-01-15VictordeHollanderNF
no factor from 2^66 to 2^67
2014-08-27NRNF
no factor from 2^65 to 2^66
2013-11-04lycornNF
no factor from 2^64 to 2^65