#include <bits/stdc++.h>
using namespace std;
using ll = long long;
const ll mod = 1e9 + 7;
const int N = 200005;
const int INF = 0x3f3f3f3f;
ll lcm(ll x, ll y) {
    if (x == 0 || y == 0) return 0;
    ll g = gcd(x, y);
    if (x / g > LLONG_MAX / y) return LLONG_MAX;
    return x / g * y;
}
int main() {
    int _;
    cin >> _;
    while (_--) {
        ll n, a, b, c;
        cin >> n >> a >> b >> c;
        ll l = lcm(a, b);
        ll k1 = n / a - ((l <= n && l != 0) ? (n / l) : 0);
        ll k2 = n / c;
        ll lac = lcm(a, c);
        ll tmp = lcm(lac, b);
        ll k3 = ((lac <= n && lac != 0) ? (n / lac) : 0) - ((tmp <= n && tmp != 0) ? (n / tmp) : 0);
        // cout << k1 << " " << k2 << " " << k3 << endl;
        cout << k1 + k2 - k3 << "\n";
    }
    return 0;
}

answer.code: In function 'll lcm(ll, ll)':
answer.code:9:12: error: 'gcd' was not declared in this scope
    9 |     ll g = gcd(x, y);
      |            ^~~