#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using P = pair<ll, ll>;
#define rep(i, a, b) for(ll i = a; i < b; ++i)
#define rrep(i, a, b) for(ll i = a; i >= b; --i)
constexpr ll inf = 4e18;
struct SetupIO {
    SetupIO() {
        ios::sync_with_stdio(0);
        cin.tie(0);
        cout << fixed << setprecision(30);
    }
} setup_io;
int main(void) {
    ll a, b;
    cin >> a >> b;
    vector<ll> t(a), s(b);
    ll g = 0;
    rep(i, 0, a) {
        cin >> t[i];
        g = gcd(g, t[i]);
    }
    bool ans = true;
    rep(i, 0, b) {
        cin >> s[i];
        if(s[i] % g != 0) {
            ans = false;
        }
    }
    if(ans) {
        cout << "Yes" << '\n';
    } else {
        cout << "No" << '\n';
    }
}