#!/bin/env python
from sys import argv
from math import floor, sqrt
def naive_factor(n: int) -> int:
for i in range(2,floor(sqrt(n))+1):
if n%i == 0:
return i
else:
return -1
N = int(argv[-1])
f = naive_factor(N)
if f == -1:
print(N, "is prime")
else:
print(N, "=", f, "*", N//f)