Marin Mersenne 2^P-1
Username
Password
Forgot password?
Black
Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
11259823Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 273
TF target 268
P-1
B1 = 10000000
B2 = 20028312150
ECM
DigitsB1Curves
25500002 / 280
Estimated T-Level: 20.0
LL
StatusDateUserResidueShift
Verified2002-06-02Jürgen Kahnert84BC518E076112CB3842725
Verified2004-03-26Brian Doherty84BC518E076112CB6995258
History
DateUserTypeResult
2025-02-12James HeinrichNF
no factor from 2^72 to 2^73
2024-09-10vshNF
no factor from 2^72 to 2^73
2024-06-06vshNF-PM1
B1=10000000, B2=20028312150
2024-04-29vshNF-PM1
B1=4300000, B2=5975406360
2024-04-01vshNF-PM1
B1=2150000, B2=1819603170
2021-10-30SRBaseNF
no factor from 2^71 to 2^72
2021-08-14SRBaseNF
no factor from 2^70 to 2^71
2021-08-06SRBaseNF
no factor from 2^69 to 2^70
2017-12-27ramgeisNF
no factor from 2^68 to 2^69
2017-12-27ramgeisNF
no factor from 2^67 to 2^68
2015-12-28VictordeHollanderNF
no factor from 2^66 to 2^67
2015-05-23NesowaNF
no factor from 2^65 to 2^66
2013-11-21lycornNF
no factor from 2^64 to 2^65
2012-05-20James HeinrichNF-PM1
B1=215000, B2=5160000, E=6