Write the following sets in the set-builder form:

{5, 25, 125, 625}

The elements of the set can be disintegrated as

5 = 5¹

25 = 5²

125 = 5³

625 = 5⁴

The set in the set-builder form is

A= {x :x= 5ⁿ, n ∈N and 1≤n ≤4}