How to find integer nth roots?

Question

I want to find the greatest integer less than or equal to the kth root of n. I tried

int(n**(1/k))

But for n=125, k=3 this gives the wrong

Answer 1

Why not to try this :

125 ** (1 / float(3)) 

or

pow(125, 1 / float(3))

It returns 5.0, so you can use int(), to convert to int.