#include <iostream>
using namespace std;
int main()
{int ugl(int x);
int returnnumber;
int n;
cout<<"please enter a number:";
cin>>n;
returnnumber=ugl(n);
if(returnnumber==1)
cout<<"it is an ugly number.";
else
cout<<"it is not an ugly number."<<endl;
return 0;
}
int ugl(int x)
{
int y=0,u=0,s=0;
while((y=x%2)==0)
{x=x/2;
}
while((u=x%3)==0)
{x=x/3;
}
while((s=x%5)==0)
{x=x/5;
}
if(x==1)
return(1);
else
return(-1);
}
