#include <iostream>
using namespace std;

int f(int n)
{
    int k=0;
    while (n>=5)
    {
        n/=5;
        k+=n;
    }
    return k;
}

int main()
{
    int t,n;
    cin >> t;
    while (t--)
    {
        cin >> n;
        cout << f(n) << endl;
    }
    return 0;
}