7+

7^917+1 L

Open composite · C217 · component L

Target FactorDB

NFS Planning

GNFS Murphy estimate
5.79e-16
SNFS Murphy raw
1.51e-16
SNFS Murphy normalized (deg 6)
1.51e-16
Preferred method
GNFS
SNFS possible
Yes
SNFS degree
6
SNFS skew
0.49848

Identifiers

Target expression
7^917+1 L
Target value
132901451938285321522282923476571614997608488367906252157717639321755193011863414581111216490960624825627271488470769276528100654708545444044270383255580296193422566040801595577411297293249730432456424072124712342747432426038680324706003196524186781783892941404590899712869990635508397414536512143611156639961916052125444796413025127
Target link
FactorDB page
Target ID
1100000000004285006
Target changed
Before 6/8/2026
Parent query
7^917+1
Parent ID
1000000000016831515
Cofactor token
C217
Imported
Jun 07, 2026, 01:42 AM UTC

Raw pmain126 Factorization

(7L) 283600591.13687656240763.90522517105381248254039.4475146393954470814007626381.426813419207563587890999014804808249714827.C217

SNFS Polynomial

Degree
6
Raw Murphy
1.51e-16
Normalized (deg 6)
1.51e-16
Skew
0.49848
Selected
Best
n: 1752318827536800689353669206078951925622820164851645231247909563481504638608818636570665445270425784213226265167363280067362214929268545477283051010928721299690471691817233063931601533174061496359136277596355968097491
# 7^917+1 Aurifeuillian L, difficulty: 332.12, skewness: 0.38
# cost: 2.59008e+21, est. time: 1233373.19 GHz days (not accurate yet!)
# Optimized skew: 0.49848 Murphy: 1.51e-16
skew: 0.49848
c6: 343
c5: -343
c4: 147
c3: -49
c2: 21
c1: -7
c0: 1
Y1: -1
Y0: 8538323413450849900970017037940802745289307058918668807
type: snfs