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

int main() {
	long long N;
	cin >> N;
	map<long long, long long> mp;
	for( long long i = 2; i * i <= N; i++ ) {
		while( N % i == 0 ) {
			mp[i]++;
			N /= i;
		}
	}
	if( N != 1 ) mp[N]++;
	string ans = "No";
	int sz = mp.size();
	if( sz <= 2 ) ans = "Yes";
	cout << ans << endl;
}