#include<iostream>
using namespace std;
int a[100005];
int main(){
    int n,t;
    cin >> t;
    while(t--){
        cin >> n;
        int maxn = -1,flag = 1;
        for(int i = 1;i <= n;i++){
            cin >> a[i];
            if(a[i] > maxn){
				maxn = a[i];
			}
        }
        for(int i = 1;i <= n;i++){
            if(maxn % a[i] != 0){
                flag = 0;
                break;
            }
        }
        if(flag == 0){
			cout << "No" << endl;
        }else{
			cout << "Yes" << endl;
        }
    }
    return 0;
}