7^451+1

Open composite · C261

NFS Planning

GNFS Murphy estimate: 1.62e-18
SNFS Murphy raw: 3.45e-18
SNFS Murphy normalized (deg 6): 5.53e-18
Preferred method: SNFS
SNFS possible: Yes
SNFS degree: 5
SNFS skew: 1.54437

Identifiers

Target expression: 7^451+1
Target link: FactorDB page
Target ID: 1000000000016828719
Target changed: Before 6/8/2026
Parent query: Same as target
Parent ID: -
Cofactor token: C261
Imported: Jun 07, 2026, 01:42 AM UTC

Raw pmain126 Factorization

(1,11,41) 5413.93809.1463947.1599608682904908773097268577.133615628068495485816442606724580463.C261

SNFS Polynomial

Polynomial

Degree: 5
Raw Murphy: 3.45e-18
Normalized (deg 6): 5.53e-18
Skew: 1.54437
Selected: Best

n: 787279702328271575456585670591231460142828486172321387685072231213952718397878654180051557879591423152534258660889363659917269994013269576284292513547199297861029555269094562488192824617329209077982399867303455252527530147759837189400909489758425142394880113849
# 7^451+1, difficulty: 346.49, skewness: 1.00
# cost: 6.45612e+21, est. time: 3074341.98 GHz days (not accurate yet!)
# Optimized skew: 1.54437 Murphy: 3.45e-18
skew: 1.54437
c5: 1
c4: -1
c3: -4
c2: 3
c1: 3
c0: -1
Y1: -44567640326363195900190045974568007
Y0: 1986274564260074954771227439341817016242885890299592103563430267952050
type: snfs