Write a program to find the factorial of a number

  #include<stdio.h>  
  #include<conio.h>  
  int main()  
 {  
  int i=1,fact=1,num;  
  printf("Enter a number: ");  
  scanf("%d",&num);  
  while(i<=num)  
 {  
    fact=fact*i;  
    i++;  
  }  
  printf("Factorial of %d is: %d",num,fact);  
  return 0;  
 }  
 Sample output:  
 Enter a number: 5  
 Factorial of 5 is: 120