#include <iostream>
#include <vector>

using namespace std;
using ll = long long;

constexpr int iINF = 1'000'000'000;
constexpr ll llINF = 1'000'000'000'000'000'000;

int gcd (int x, int y) {
    while (0 < x) {
        int t = x;
        x = y % x;
        y = t;
    }
    return y;
}

int main () {
    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];

    // 全体のgcdをgとして、相手の任意の項がgで割り切れればOK
    int g = 0;
    for (int i = 0; i < a; i++) g = gcd(g, T[i]);

    bool ok = true;
    for (int i = 0; i < b; i++) if (S[i] % g != 0) ok = false;

    string ans = "Yes";
    if (!ok) ans = "No";

    cout << ans << "\n";
}