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

long long gcd(long long x, long long y) {
    if (y == 0) {
        return x;
    }
    return gcd(y, x % y);
}

long long gcd_array(vector<long long> a) {
    long long ans = a[0];
    for (int i = 0; i < (int)a.size(); i++) {
        ans = gcd(ans, a[i]);
    }
    return ans;
}

int main() {
    int a, b;
    cin >> a >> b;
    vector<long long> t(a), s(b);
    for (int i = 0; i < a; i++) {
        cin >> t[i];
    }
    for (int i = 0; i < b; i++) {
        cin >> s[i];
    }
    long long g = gcd_array(t);
    for (auto x : s) {
        if (x % g != 0) {
            cout << "No" << endl;
            return 0;
        }
    }
    cout << "Yes" << endl;
}