3^821+1

Open composite · C319

NFS Planning

GNFS Murphy estimate: 7.02e-22
SNFS Murphy score: 3.94e-18
Preferred method: SNFS
SNFS possible: Yes
SNFS degree: 7
SNFS skew: 1.07818

Identifiers

Target expression: 3^821+1
Target link: FactorDB page
Target ID: 1000000000016446939
Target changed: -
Parent query: Same as target
Parent ID: -
Cofactor token: C319
Imported: Jun 03, 2026, 04:30 PM UTC

Raw pmain126 Factorization

(1) 1787694661.5703368475314238356508564776900310998275466370387903205019618881.C319

SNFS Polynomial

Polynomial

Degree: 7
Murphy: 3.94e-18
Skew: 1.07818
Selected: Best

n: 1276630922296591140521517670262381983540182655378324189155310756271308292292074434675955193091054855401899126245407371137043799543520410660661828693387559996061224032942247139493594716155534516784705041785418554402542664596037198528887720553413886642367111590857725758519586928354336327438895681406551763010136625395561
# 3^821+1, difficulty: 391.72, skewness: 1.37
# cost: 9.94568e+22, est. time: 47360386.49 GHz days (not accurate yet!)
# Optimized skew: 1.07818 Murphy: 3.94e-18
skew: 1.07818
c7: 1
c0: 9
Y1: -66555937033867822607895549241096482953017615834735226163
Y0: 1
type: snfs