7+

7^476+1

Open composite · C233

Target FactorDB

NFS Planning

GNFS Murphy estimate
6.83e-17
SNFS Murphy score
6.34e-17
Preferred method
Similar
SNFS possible
Yes
SNFS degree
6
SNFS skew
1.41404

Identifiers

Target expression
7^476+1
Target link
FactorDB page
Target ID
1000000000016828869
Target changed
-
Parent query
Same as target
Parent ID
-
Cofactor token
C233
Imported
Jun 03, 2026, 04:31 PM UTC

Raw pmain126 Factorization

(4,28,68) 2673217.504656028062052161.24828439981649971745215201.9811266944802982315609777099718565642642641.C233

SNFS Polynomial

Degree
6
Murphy
6.34e-17
Skew
1.41404
Selected
Best
n: 10025914667973237638908995728232380132336288943310397886268117045739869457307480987106086389137690137429535632978685401021151640608836670255861091945960220601677868291655081670801725839960223023988274768963729152548025729093941631953
# 7^476+1, difficulty: 344.80, skewness: 1.00
# cost: 5.80531e+21, est. time: 2764434.28 GHz days (not accurate yet!)
# Optimized skew: 1.41404 Murphy: 6.34e-17
skew: 1.41404
c6: 1
c5: -1
c4: 1
c3: -1
c2: 1
c1: -1
c0: 1
Y1: -1
Y0: 2928644930813641516032715844013695341634232321209103400801
type: snfs