#ifdef LOCAL
#include <local.hpp>
#else
#pragma GCC optimize("O3,unroll-loops")
#pragma GCC target("avx2,popcnt,lzcnt,abm,bmi,bmi2")
#include <bits/stdc++.h>
#define debug(...) ((void)0)
#define postprocess(...) ((void)0)
#endif

using namespace std;
using ll = long long;
using ld = long double;

void solve([[maybe_unused]] int test) {
    int a, b;
    cin >> a >> b;

    vector<int> T(a), S(b);
    for (auto&& x : T) {
        cin >> x;
    }
    for (auto&& x : S) {
        cin >> x;
    }

    int base = T[0];
    for (auto&& x : T) {
        base = gcd(base, x);
    }

    for (auto&& x : S) {
        if (x % base != 0) {
            cout << "No" << endl;
            return;
        }
    }

    cout << "Yes" << endl;
}

int main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);

    int t = 1;
    // cin >> t;
    for (int i = 1; i <= t; i++) {
        solve(i);
    }

    postprocess();
}