2LM

2^2962+1 L

Open composite · C308 · component L

NFS Planning

GNFS Murphy estimate: 3.05e-21
SNFS Murphy score: 8.17e-20
Preferred method: SNFS
SNFS possible: Yes
SNFS degree: 8
SNFS skew: 0.87682

Identifiers

Target expression: 2^1481+1-2^741
Target value: 66899608822696759696250129623948780047462493668233544967795940446454932881476063163103257916612566493326474011984705958174313638575496596821157529674538995452670968027742571381543736861388135808060993546180989512350760380285037648634593916151789206538883975878294432318014436790655533470643707610997049259345932818852915845753734708208725926520747103855802936261736938722443350605078241507696275727166082918848223941386700805545676726275460300801
Target link: FactorDB page
Target ID: 1100000000002485132
Target changed: -
Parent query: 2^2962+1
Parent ID: -
Cofactor token: C308
Imported: Jun 03, 2026, 04:30 PM UTC

Raw pmain126 Factorization

68078609.99286241.99726854400289030039273.4424388743112395116816089328478915307741113434409.233414974637879661924692361081186178308379240981829.C308

SNFS Polynomial

Polynomial

Degree: 8
Murphy: 8.17e-20
Skew: 0.87682
Selected: Best

n: 96101401738349897511751914320392935551561003832253509514415012956241866079877255095526339281372076132650071668849984562963305571650269655917346219311495963076275174356874584099699474090833235967039742715290862024247295704398823069015954221311015158388652721025078045813203485677911266805878102543913864815693
# 2^2962+1 Aurifeuillian L, difficulty: 445.83, skewness: 0.92
# cost: 2.06367e+24, est. time: 982701185.75 GHz days (not accurate yet!)
# Optimized skew: 0.87682 Murphy: 8.17e-20
skew: 0.87682
c8: 2
c4: -2
c0: 1
Y1: -1
Y0: 49039857307708443467467104868809893875799651909875269632
type: snfs