D

#include <bits/stdc++.h>
using namespace std;

int main() {
    int t;
    cin>>t;

    while(t--){
        int n;
        cin>>n;

        vector<int> a(n);

        for(auto &e: a)         cin>>e;

        sort(a.begin(), a.end());

        if(a[0] != a[1])
        {
            cout<<"YES\n";
            continue;
        }

        int f = 0;

        for(auto e: a)
            f += (e%a[0] > 0);

        if(f)       cout<<"YES\n";
        else        cout<<"NO\n";
    }
}