#include <iostream>
#include <string>
#include <algorithm>
#include <vector>
#include <iomanip>
#include <cmath>
#include <stdio.h>
#include <queue>
#include <deque>
#include <cstdio>
#include <set>
#include <map>
#include <bitset>
#include <stack>
#include <cctype>
using namespace std;
int main() {
    int t;
    cin >> t;
    for (int i = 0; i < t; i++) {
        long long n;
        cin >> n;
        while (n % 2 == 0) {
            n /= 2;
        }
        while (n % 5 == 0) {
            n /= 5;
        }
        long long k = 9;
        for (int j = 1;; j++) {
            k %= n;
            if (k == 0) {
                cout << j << endl;
                break;
            }
            k *= 10;
            k += 9;
        }
    }
}