#include #include #include #include #include #include #include #include #include #include #define ALL(obj) (obj).begin(),(obj).end() #define RALL(obj) (obj).rbegin(),(obj).rend() #define P pair #define MOD 1000000007 #define INF 1012345678 #define NINF (-2147483647-1) #define LLINF 9223372036854775807 using ll = long long; using namespace std; int main() { ll N; cin >> N; int cnt = 0, i = 2; while(N > 1) { while (N % i == 0) { N /= i; cnt++; if (cnt >= 3) { break; } } i++; } if (cnt >= 3) { cout << "YES" << endl; } else { cout << "NO" << endl; } getchar(); getchar(); return 0; }