7^451+1

Open composite · C261

NFS Planning

GNFS Murphy estimate: 1.62e-18
SNFS Murphy score: 7.78e-18
Preferred method: SNFS
SNFS possible: Yes
SNFS degree: 7
SNFS skew: 1.81913

Identifiers

Target expression: 7^451+1
Target link: FactorDB page
Target ID: 1000000000016828719
Target changed: -
Parent query: Same as target
Parent ID: -
Cofactor token: C261
Imported: Jun 03, 2026, 04:31 PM UTC

Raw pmain126 Factorization

(1,11,41) 5413.93809.1463947.1599608682904908773097268577.133615628068495485816442606724580463.C261

SNFS Polynomial

Polynomial

Degree: 7
Murphy: 7.78e-18
Skew: 1.81913
Selected: Best

n: 787279702328271575456585670591231460142828486172321387685072231213952718397878654180051557879591423152534258660889363659917269994013269576284292513547199297861029555269094562488192824617329209077982399867303455252527530147759837189400909489758425142394880113849
# 7^451+1, difficulty: 381.14, skewness: 2.30
# cost: 5.34056e+22, est. time: 25431229.66 GHz days (not accurate yet!)
# Optimized skew: 1.81913 Murphy: 7.78e-18
skew: 1.81913
c7: 1
c0: 343
Y1: -1219760487635835700138573862562971820755615294131238401
Y0: 1
type: snfs