Factorial of a Number in C

Code -


//__Program will calculate the factorial of a given number (No Validation included)____



//____________________Include Header Files_________________


#include<stdio.h>

//________Header Files are also known as Preprocessor directives____________

#include<conio.h>

//________Mainly for the getch function included in program_________________

int main()

//___________This is from where the execution starts_____________________

{
int number = 0, factorial = 1, temp = 0;

//____________Variable Declaration_____________


        printf("\n\t\t\t_______Factorial of a Number_______");

printf("\n\n\t     Enter the Number - ");

//____________Prompting the user to enter the number for which to calculate

scanf("%d", &number);

//_________Reading the user input and storing the input in variable number_________

for(temp = number ; temp >= 1; temp --)
{
factorial = factorial * temp;

}

printf("\n\n\t     Factorial of %d is - %d",number,factorial);

//_______Display the final output_________

getch();

}


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