5^577+1

Open composite · C306

NFS Planning

GNFS Murphy estimate: 3.99e-21
SNFS Murphy score: 1.46e-18
Preferred method: SNFS
SNFS possible: Yes
SNFS degree: 7
SNFS skew: 1.56750

Identifiers

Target expression: 5^577+1
Target link: FactorDB page
Target ID: 1000000000016637475
Target changed: -
Parent query: Same as target
Parent ID: -
Cofactor token: C306
Imported: Jun 03, 2026, 04:31 PM UTC

Raw pmain126 Factorization

(1) 346201.420694163.372925733777316803.77514092918537513255141.4009007428588737002539848617378833465239227.C306

SNFS Polynomial

Polynomial

Degree: 7
Murphy: 1.46e-18
Skew: 1.56750
Selected: Best

n: 199621154969729321030447532472001960007946754190017127453646511431729854269684650707580701478244406968245694556446479577062989676410560574468797379708420748064071302378446526822952152011862341923421502272189162218213133957356845088950770363768621847830978863589845107825055985413280442602148356236279749127
# 5^577+1, difficulty: 403.31, skewness: 1.99
# cost: 1.94322e+23, est. time: 92534086.24 GHz days (not accurate yet!)
# Optimized skew: 1.56750 Murphy: 1.46e-18
skew: 1.56750
c7: 1
c0: 125
Y1: -2067951531382569187178521730174907133914530277252197265625
Y0: 1
type: snfs