#include <iostream>
using namespace std;

int main()
{
    int t;
    int ii =0;
    int a[100005] ={};
    int n ;
    cin >>t;
    for(int q = 1;q <= t;q++)
    {
        cin>>n;
        for(int i = 1;i <= n;i++)
        {
            cin >>a[i];
        }
        for(int i = 1;i <= n;i++)
        {
            for(int j = 1;j <= n;j++)
            {
                if(a[j]%i == 0)
                {
                        ii = 1;
                }
             }
            
        }
        if(ii == 1)
        {
            cout << "Yes";
        }
        else
        {
            cout <<"No";
        }
        cout <<endl;
            
    }
    
    
    return 0;
}