C-PROGRAM FACTORIAL OF A NUMBER

 TO FIND  FACTORIAL OF A NUMBER

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();
}