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
11603939Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 275
TF target 268
P-1
B1 = 46415756
B2 = 140197877820
ECM
DigitsB1Curves
255000028 / 280
Estimated T-Level: 20.5 ⓘ
LL
StatusDateUserResidueShift
Verified2002-01-22ryo32E861D60F737D0610483308
Verified2004-03-16Marc Getty / Phil Fizur32E861D60F737D068698203
History
DateUserTypeResult
2025-02-24yuriy_5-1NF-PM1
B1=46415756, B2=140197877820
2025-01-13yuriy_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
2024-06-20yuriy_5-1NF-PM1
B1=13971144, B2=124183569510
2024-04-22yuriy_5-1NF-PM1
B1=6410410, B2=3062021820
2023-01-03Naegi 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
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
2012-02-08James HeinrichNF-PM1
B1=225000, B2=5400000, E=6