Factorial By Recursion in C

                                              To compile and execute the program, copy the code into a text file. Save the text file with the extinction .c (ex. program.c). Save your file in turboc2 or borland (it may your othe c-compiler). Now open you IDE (tc.exe) , goto file->pick file. Your source file will be loaded into IDE. Now you can compile and run the file easily.

# include<stdio.h>
 
int factorial(unsigned int number)
{
    if(number <= 1)
        return 1;
    return number * factorial(number - 1);
}
void main()
{
    int x = 5;
    printf("factorial of %d is %d",x,factorial(x));
}