FACTORIAL OF A NUMBER

#include<stdio.h>

#include<conio.h>

void main()

{

  int i=1,f=1,num;

  clrscr();

  printf("\nEnter a number:");

  scanf("%d",&num);

  while(i<=num)

  {

            f=f*i;

            i++;

  }

  printf("\nFactorial of %d is:%d",num,f);

  getch();

}