import java.io.BufferedReader;
import java.io.InputStreamReader;

public class Main {
	public static void main(String[] args) throws Exception {
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
		String[] sa = br.readLine().split(" ");
		int a = Integer.parseInt(sa[0]);
		int b = Integer.parseInt(sa[1]);
		sa = br.readLine().split(" ");
		int[] t = new int[a];
		for (int i = 0; i < a; i++) {
			t[i] = Integer.parseInt(sa[i]);
		}
		sa = br.readLine().split(" ");
		int[] s = new int[b];
		for (int i = 0; i < b; i++) {
			s[i] = Integer.parseInt(sa[i]);
		}
		br.close();

		int g = 0;
		for (int i = 0; i < a; i++) {
			g = gcd(g, t[i]);
		}

		for (int i = 0; i < b; i++) {
			if (s[i] % g != 0) {
				System.out.println("No");
				return;
			}
		}
		System.out.println("Yes");
	}

	static int gcd(int a, int b) {
		return b == 0 ? a : gcd(b, a % b);
	}
}