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

int main() {
  int n, m; cin >> n >> m;
  vector<int> a(n), b(m);
  int g = 0;
  for (int i = 0; i < n; i++) {
    cin >> a[i];
    g = gcd(g, a[i]);
  }
  for (int i = 0; i < m; i++) { cin >> b[i]; }
  // cerr << g << endl;
  vector<int> ok(g);
  for (int i = 0; i < n; i++) {
    ok[a[i] % g] = true;
  }
  for (int i = 0; i < m; i++) {
    if (not ok[b[i] % g]) {
      cout << "No" << endl;
      return 0;
    }
  }
  cout << "Yes" << endl;
}