import std;
void main()
{
	long N;
	readf("%s\n",&N);
	int cnt;
	for(long i=2;i*i<=N;++i)
	{
		cnt+=N%i==0;
		while(N%i==0)N/=i;
	}
	cnt+=N>1;
	writeln(cnt<3?"Yes":"No");
}