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
8451427Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 273
TF target 268
P-1
B1 = 2600000
B2 = 1963347750
ECM
DigitsB1Curves
25500003 / 280
Estimated T-Level: 20.1 ⓘ
LL
StatusDateUserResidueShift
Verified2000-08-10Stephen Wood47010F2F1F2081D73621321
Verified2002-11-09Luigi Morelli47010F2F1F2081D76303124
History
DateUserTypeResult
2023-02-01yoyorocks1NF-PM1
B1=2600000, B2=1963347750
2021-12-05-Anonymous-NF
no factor from 2^72 to 2^73
2021-10-05SRBaseNF
no factor from 2^71 to 2^72
2021-09-01SRBaseNF
no factor from 2^70 to 2^71
2021-08-20SRBaseNF
no factor from 2^69 to 2^70
2021-06-15Dylan DelgadoNF-PM1
B1=600000, B2=37200000
2019-11-30mnd9NF
no factor from 2^68 to 2^69
2018-03-18monstNF
no factor from 2^67 to 2^68
2016-01-11snme2pm1NF
no factor from 2^66 to 2^67
2015-05-26VictordeHollanderNF
no factor from 2^65 to 2^66
2014-03-13lycornNF
no factor from 2^64 to 2^65
2012-08-12NesowaNF-PM1
B1=105000, B2=2375000, E=6