View Code of Problem 91

#include<bits/stdc++.h>

using namespace std;

int main()
{
    int n;
    scanf("%d",&n);
    printf("%d=",n);
    for (int i = 2; i <= sqrt(n); ++i){
        while (n % i == 0){
            printf("%d*",i);
            n /=i;
        }
    }
    printf("%d\n",n);

}