#include <cstdio>#include <iostream>using namespace std;#ifdef ONLINE_JUDGE                                   #define FINPUT(file)  0#define FOUTPUT(file) 0#else                                                #define FINPUT(file)  freopen(file,"r",stdin)#define FOUTPUT(file) freopen(file,"w",stdout)#endifbool isPrime(int n){	int i;	if(n==2||n==3)		return true;	for(int i=2;i*i<=n;i++)	{		if(n%i==0)			return false;	}	return true;}int main(){    FINPUT("in.txt");    FOUTPUT("out.txt");        int n;    while(cin>>n && n)    {		if(n==1)			cout<<0<<endl;		else if(isPrime(n)) 			cout<<1<<endl;		else		{			int k = 0;			for(int i=2;i<=n && n>1;i++)			{				while(n%i==0)				{					n/=i;					k++;				}			}			cout<<k<<endl; 		}			    }    return 0;}