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

int main() {
	long long N;
	cin >> N;
	set<long long> se;
	for(long long i = 2; i * i <= N; i++) {
		if(N % i == 0) {
			while(N % i == 0) N /= i;
			se.insert(i);
		}
	}
	if(N != 0) se.insert(N);
	if(se.size() <= 2) cout << "Yes" << endl;
	else cout << "No" << endl;
}