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

template<class T> istream& operator >> (istream& is, vector<T>& vec) {
    for(T& x : vec) is >> x;
    return is;
}

int main(){
    ios::sync_with_stdio(false);
    cin.tie(0);
    int a, b, g = 0;
    cin >> a >> b;
    vector<int> T(a), S(b);
    cin >> T >> S;
    for(auto &&v : T) g = gcd(g, v);
    for(auto &&v : S) {
        if(v % g != 0){
            cout << "No\n";
            return 0;
        }
    }
    cout << "Yes\n";
}