#include <bits/stdc++.h>
using namespace std;
#ifdef LOCAL
  #include "settings/debug.cpp"
#else
  #define Debug(...) void(0)
#endif
#define rep(i, n) for (int i = 0; i < (n); ++i)
using ll = long long;
using ull = unsigned long long;

int main() {
  int a, b;
  cin >> a >> b;
  vector<int> s(a), t(b);
  rep(i, a) cin >> s[i];
  rep(i, b) cin >> t[i];
  sort(s.begin(), s.end());
  if (b == 0) {
    cout << "Yes" << endl;
  }
  else if (a == 0) {
    cout << "No" << endl;
  }
  else {
    int g = accumulate(s.begin(), s.end(), 0, gcd<int, int>);
    bool exi = false;
    rep(i, b) {
      if (t[i] % g != 0) {
        exi = true;
        break;
      }
    }
    cout << (exi ? "No" : "Yes") << endl;
  }
  return 0;
}