2LM

2^2446+1 L

Open composite · C296 · component L

Target FactorDB

NFS Planning

GNFS Murphy estimate
1.52e-20
SNFS Murphy raw
7.48e-18
SNFS Murphy normalized (deg 6)
7.48e-18
Preferred method
SNFS
SNFS possible
Yes
SNFS degree
6
SNFS skew
1.56209

Identifiers

Target expression
2^1223+1-2^612
Target value
144439074515673158720724949080128706438642425359068843866970804223953784568476037236842693968934594817599437382358865231016025829751162969207532818595137180147149468098361218351316272840390890802706233710255390318717480191659665217533636981052163792383528324955366254136116871170765529660108236762044144290592807781550442263824003559729272625985818900133202901453504513
Target link
FactorDB page
Target ID
1100000000001686259
Target changed
Before 6/8/2026
Parent query
2^2446+1
Parent ID
1000000000012152470
Cofactor token
C296
Imported
Jun 07, 2026, 01:41 AM UTC

Raw pmain126 Factorization

44029.68489.1049555419229055764369034521479827628653960157386216335365932049.C296

SNFS Polynomial

Degree
6
Raw Murphy
7.48e-18
Normalized (deg 6)
7.48e-18
Skew
1.56209
Selected
Best
n: 45637271840037460991747401969385827207950725531650053651227468666181057167180534812071478836515549496852166403163227321707078204799247400264190000697256082863662016507058005682840167921475296918045878896720272913117453687310057769930175713054738161875683053754478955149906154885361406786909176477
# 2^2446+1 Aurifeuillian L, difficulty: 368.46, skewness: 1.12
# cost: 2.49966e+22, est. time: 11903152.28 GHz days (not accurate yet!)
# Optimized skew: 1.56209 Murphy: 7.48e-18
skew: 1.56209
c6: 1
c3: -2
c0: 2
Y1: -1
Y0: 25711008708143844408671393477458601640355247900524685364822016
type: snfs