#include <bits/stdc++.h>

int ri() {
	int n;
	scanf("%d", &n);
	return n;
}

// WA expected

int main() {
	int n = ri();
	int h = ri();
	int x = 1;
	for (int i = 0; i < n; i++) x = x * ri() % h;
	puts(x ? "NO" : "YES");
	return 0;
}