__C Program to find out factorial of a number__

This is a C program to find out the factorial of a given
number. In this example, it takes the number as input to the program,
calculates the factorial of the number and prints the result.

In mathematics, the factorial of a non-negative integer n,
denoted by n!, is the product of all positive integers less than or equal to n.
For example:

**5! = 1 x 2 x 3 x 4 x 5 = 120**

__See the source code of the program__
/*

Program to find out factorial of a
number

input : a number

output : factorial

*/

# include
<stdio.h>

void main
() {

long int n,factorial, i;

clrscr();

printf
("Input\n-----\n\n");

printf ("Enter a
number:");

scanf ("%ld", &n);

**factorial = 1;**

**for (i=1;i<=n;i++)**

**factorial = factorial * i;**

printf
("\n\nOutput\n------\n\n");

printf("Factorial of %ld is
%ld", n, factorial);

printf("\n\nPress any key to
continue...");

getch();

}

__Output__

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