,

Rewrite as .

Pull terms out from under the radical, assuming positive real numbers.

Multiply by .

Every number is a factor of .

Infinitely many factors

The factors for are all numbers between and , which divide evenly.

Check numbers between and

Find the factor pairs of where .

List the factors for .

List all the factors for to find the common factors.

:

:

The common factors for are .

The GCF (HCF) of the numerical factors is .

Find the GCF 0 , 5 square root of 256