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
11612927Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 275
TF target 268
P-1
B1 = 13981966
B2 = 119800600920
ECM
DigitsB1Curves
255000028 / 280
Estimated T-Level: 20.5 ⓘ
LL
StatusDateUserResidueShift
Verified2001-10-13E Nystrom97D0CDE457DA7318475784
Verified2004-03-26Britton Devon Smith97D0CDE457DA73185278095
History
DateUserTypeResult
2025-01-21yuriy_5-1NF
no factor from 2^74 to 2^75
2024-09-02yuriy_5-1NF
no factor from 2^73 to 2^74
2024-08-15vshNF
no factor from 2^72 to 2^73
2024-06-03yuriy_5-1NF-PM1
B1=13981966, B2=119800600920
2024-04-22yuriy_5-1NF
no factor from 2^72 to 2^73
2022-12-29Naegi MakotoNF
no factor from 2^71 to 2^72
2021-08-22Andrew BNF
no factor from 2^70 to 2^71
2021-08-22LaurVNF-PM1
B1=6189107, B2=185673210
2021-08-08SRBaseNF
no factor from 2^69 to 2^70
2018-01-09ramgeisNF
no factor from 2^68 to 2^69
2018-01-09ramgeisNF
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
2013-11-05lycornNF
no factor from 2^64 to 2^65
2012-03-18James HeinrichNF-PM1
B1=225000, B2=5400000, E=6