C Program to Find Factorial of a Number | Factorial Program in C

 

What is Factorial ?

n! "n factorial"
If n is a positive integer, then n! is nmultiplied by all of the smaller positive integers.
0! = 1 
1! = 1 
2! = (2)(1) = 2 
3! = (3)(2)(1) = 6 
4! = (4)(3)(2)(1) = 24 
5! = (5)(4)(3)(2)(1) = 120 
6! = (6)(5)(4)(3)(2)(1) = 720

1. #include<stdio.h>
2. int main()
3. {
4.    int i;
5.    int fact=1;
6.    int number;
7.    printf("Enter a number: \n");
8.    scanf("%d",&number);
9.              for(i = 1; i <= number; i++)
10.                     {
11.                        fact=fact*i;
12.                     }
13. printf("Factorial of %d is: %d\n",number,fact);
14. return 0;
15. }