primefactor generator.c

素数因子产生器：该程序能生成prime factor

#include<iostream.h>
#include<iomanip.h>
#include<conio.h>
#include<math.h>
void main()

{ clrscr();
unsigned long int  x;
char c='y';
do
{
cout<<"enter the no....."<<endl;
 cin>>x;
cout<<"Factors are...";
do
{
  for(unsigned long  i=2;i<=x;i++)
 {
 unsigned long f=x%i;
	if(f==0)
 {  cout<<i<<"  ";
  x=x/i; break;  }
  }
     } while(x!=1);
 getch();
cout<<endl;
cout<<"continue...(y/n)....";
cin>>c;
cout<<endl;
}
while(c=='y');
}