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
11608489Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 275
TF target 268
P-1
B1 = 86433956
B2 = 1077865408620
ECM
DigitsB1Curves
255000028 / 280
Estimated T-Level: 20.5 ⓘ
LL
StatusDateUserResidueShift
Verified2001-05-13Willamette Mathematics37E32F43D1736ED31296121
Verified2005-01-10Shane Sanford37E32F43D1736ED36476511
History
DateUserTypeResult
2025-03-12yuriy_5-1NF-PM1
B1=86433956, B2=1077865408620
2025-01-22yuriy_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
2024-07-01yuriy_5-1NF-PM1
B1=13976622, B2=124183569510
2024-04-22yuriy_5-1NF-PM1
B1=6410865, B2=2977697580
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
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
2013-11-05lycornNF
no factor from 2^64 to 2^65
2012-03-17James HeinrichNF-PM1
B1=225000, B2=5400000, E=6