Factorial Example Program Using Function In C Programming Language
Definition of Factorial
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,
6! = 6 x 5 x 4 x 3 x 2 x 1 = 720
The value of 0! is 1, according to the convention for an empty product.
Example Program For Factorial In C Programming Language
/* Example Program For Find Factorial Number In C Programming Language
little drops @ thiyagaraaj.com
Coded By:THIYAGARAAJ MP */
// Header Files
#include<stdio.h>
#include<conio.h>
// define Function and Its Argument Type
long factorial(long);
//Main Function
int main()
{
// Variable Declaration for Factorial Function Input
long f;
printf("Enter the Number for Factorial Calculation :?);
scanf("%ld",&f);
//factorial calculation
printf("The Factorial of %ld is %ld",f,factorial(f));
// Wait For Output Screen
getch();
//Main Function return Statement
return 0;
}
// factorial Function
long factorial(long n)
{
int counter;
long fact = 1;
//for Loop for Factorial Calculation Block
for (counter = 1; counter <= n; counter++)
{
fact = fact * counter;
}
return fact;
}
Sample Output
Enter the Number :6
6 Factorial Value Is 720
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