D

#include <bits/stdc++.h>
typedef long long ll;
typedef unsigned long long ull;
#define vi vector<int>
#define vll vector<ll>
#define tests int t; cin >> t; while(t--)
#define pb push_back
using namespace std;

int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(NULL); cout.tie(NULL);
    tests {
        int n, c; cin >> n >> c;
        vi arr(c+1, 0);
        for(int i = 0; i < n; i++) {
            int x; cin >> x;
            arr[x] = x;
        }
        if(arr[1] == 0) {
            cout << "No\n";
            continue;
        }
        bool f = 1;
        for(int i = c-1; i >= 1; i--)
            if(arr[i] == 0) arr[i] = arr[i+1];
        for(int i = 2; i <= c; i++) {
            if(arr[i] == i) {
                for(int j = i; j <= c; j += i) {
                    if(arr[j] && arr[j]/arr[arr[j]/i] != i) {
                        f = 0;
                        break;
                    }
                }
            }
        }
        if(f) cout << "Yes\n";
        else cout << "No\n";
    }
    return 0;
}