#include <iostream>
using namespace std;

int main() {
	int A, B, i;
	cin >> A >> B;
	for (i = 1; i <= A; ++i) {
		if (0 == A % i && 0 == i % B) break;
	}
	if (1 + A == i) cout << "NO";
	else cout << "YES";
}