2LM

2^2830+1 L

Open composite · C283 · component L

Target FactorDB

NFS Planning

GNFS Murphy estimate
8.60e-20
SNFS Murphy score
6.21e-17
Preferred method
SNFS
SNFS possible
Yes
SNFS degree
8
SNFS skew
0.76686

Identifiers

Target expression
2^1415+1-2^708
Target value
906658765299978080960247961579516203166341385312259077666935712273026745534422020832393891836997183249756898334015464861462873550781763000899227817785841317770725747629439390318073576212334221611493567798722611619205533810475617169832050396006568502792089232451261171682695571428788999600002990736774535279239630315518786578707090795144154323953944196837597736031917205684691377083503159453588665582877322552246492832320192513
Target link
FactorDB page
Target ID
1100000000002803418
Target changed
-
Parent query
2^2830+1
Parent ID
-
Cofactor token
C283
Imported
Jun 03, 2026, 04:30 PM UTC

Raw pmain126 Factorization

(10M,566M) 98913503441.3245256930751361.4368671296974620160848947886641.C283

SNFS Polynomial

Degree
8
Murphy
6.21e-17
Skew
0.76686
Selected
Best
n: 1014652185363421873927331276651111081329764455581070529632314556854493774194422566149808957801769600104229553076342019752598232955362028626360685534440785288989458461460374117063225497402263916912637002540351904072749470456567339368093700517073355518723254845641799151732986768480921
# 2^2830+1 Aurifeuillian L, difficulty: 340.77, skewness: 0.71
# cost: 4.4992e+21, est. time: 2142475.05 GHz days (not accurate yet!)
# Optimized skew: 0.76686 Murphy: 6.21e-17
skew: 0.76686
c8: 16
c7: -16
c6: 8
c4: -4
c2: 2
c1: -2
c0: 1
Y1: -1
Y0: 2787593149816327892691964784081045188247552
type: snfs