7^931+1

Open composite · C320

NFS Planning

GNFS Murphy estimate: 6.15e-22
SNFS Murphy score: 9.57e-17
Preferred method: SNFS
SNFS possible: Yes
SNFS degree: 6
SNFS skew: 0.49922

Identifiers

Target expression: 7^931+1
Target link: FactorDB page
Target ID: 1000000000016831599
Target changed: -
Parent query: Same as target
Parent ID: -
Cofactor token: C320
Imported: Jun 03, 2026, 04:31 PM UTC

Raw pmain126 Factorization

(1,7L,7M,19,133L,133M) L.M L (49L) C320 M (49M) 420486098176817.33943248980224241226381391373467. C274

SNFS Polynomial

Polynomial

Degree: 6
Murphy: 9.57e-17
Skew: 0.49922
Selected: Best

n: 28075374253052019655424914379630477823551233196348914851690973496706974494590860838301759646154856046370452050450236083096615239569493486658277369784597801557853630139159159143419213130972728421635415055126991691510873184855230163223430964012052929236745078467504626189849890878714685312558545770323001474420947185018471
# 7^931+1 Aurifeuillian L, difficulty: 337.19, skewness: 0.38
# cost: 3.58482e+21, est. time: 1707058.10 GHz days (not accurate yet!)
# Optimized skew: 0.49922 Murphy: 9.57e-17
skew: 0.49922
c6: 343
c5: -343
c4: 147
c3: -49
c2: 21
c1: -7
c0: 1
Y1: -1
Y0: 59768263894155949306790119265585619217025149412430681649
type: snfs