#include <bits/stdc++.h>
#include <atcoder/all>
using ll = long long;
#define MOD 1000000007
#define Mod 998244353
const int MAX = 1000000005;
const long long INF = 1000000000000000005LL;
using namespace std;
using namespace atcoder;



int main() {
    ios::sync_with_stdio(0);cin.tie();
    int a, b;
    cin >> a >> b;
    vector<int> T(a), S(b);
    for (int i = 0; i < a; i++) cin >> T[i];
    for (int i = 0; i < b; i++) cin >> S[i];
    int g = 0;
    for (int i = 0; i < a; i++) g = gcd(g, T[i]);
    for (int i = 0; i < b; i++) {
        if (S[i] % g != 0) {
            cout << "No" << endl;
            return 0;
        }
    }
    cout << "Yes" << endl;
}