#include <bits/stdc++.h>
using namespace std;
int main () {
	long long N;
	cin >> N;
	int cc = 0;
	for (long long i = 2; i * i <= N; i ++) {
		if (N % i) {
			continue;
		}
		while (N % i == 0) {
			N /= i;
		}
		cc++;
	}
	cc += (N > 1);
	cout << (cc < 3 ? "Yes" : "No") << endl;
}