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
11609753Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 275
TF target 268
P-1
B1 = 86439012
B2 = 922592500830
ECM
DigitsB1Curves
255000083 / 280
Estimated T-Level: 21.5 ⓘ
LL
StatusDateUserResidueShift
Verified2002-02-03Bryan FullertonC2163C98F7DB0F291127109
Verified2004-05-11Ars Technica Team Prime RibC2163C98F7DB0F294044869
History
DateUserTypeResult
2025-04-28yuriy_5-1NF-PM1
B1=86439012, B2=922592500830
2025-01-30yuriy_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
2024-05-06yuriy_5-1NF-PM1
B1=12654632, B2=111034753830
2023-02-15riccardo ubertiNF-PP1
Start=6/5, B1=2300000, B2=48000000
2023-02-10riccardo ubertiNF-PP1
Start=2/7, B1=2000000, B2=40000000
2023-01-03riccardo ubertiNF-PM1
B1=1500000, B2=102234990
2023-01-02riccardo ubertiNF
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
2020-03-19riccardo 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
2013-11-05lycornNF
no factor from 2^64 to 2^65