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

void fast_io() {
	ios_base::sync_with_stdio(false);
	cin.tie(nullptr);
}

int main() {
	fast_io();
	int a, b;
	cin >> a >> b;
	int g = 0;
	for (int i = 0; i < a; i++) {
		int s;
		cin >> s;
		g = gcd(g, s);
	}
	for (int i = 0; i < b; i++) {
		int t;
		cin >> t;
		if (t % g) {
			cout << "No" << endl;
			return 0;
		}
	}
	cout << "Yes" << endl;
}