2^1451-1

Open composite · C407

NFS Planning

GNFS Murphy estimate: 5.53e-27
SNFS Murphy score: 1.21e-19
Preferred method: SNFS
SNFS possible: Yes
SNFS degree: 7
SNFS skew: 0.95173

Identifiers

Target expression: 2^1451-1
Target link: FactorDB page
Target ID: 1000000000000001451
Target changed: -
Parent query: Same as target
Parent ID: -
Cofactor token: C407
Imported: Jun 03, 2026, 04:29 PM UTC

Raw pmain126 Factorization

2903.174121.696481.17009142910813751. C407

SNFS Polynomial

Polynomial

Degree: 7
Murphy: 1.21e-19
Skew: 0.95173
Selected: Best

n: 10404801911000276880618327442626750580929994082341803257524110717189634235259805683259438614111454127929925847894184638567278228218347232281322690223469249822561234605513296104287387813048221399141472663806277216303905384708285572487170102346318401679284110453263848549275521688732362098263956463420010817190286033078894546269104833116618915372235110467206245659206884687613660337641297697269838237261666999
# 2^1451-1, difficulty: 436.79, skewness: 1.22
# cost: 1.26416e+24, est. time: 601982971.78 GHz days (not accurate yet!)
# Optimized skew: 0.95173 Murphy: 1.21e-19
skew: 0.95173
c7: 1
c0: -4
Y1: -205688069665150755269371147819668813122841983204197482918576128
Y0: 1
type: snfs