Write a C Program to Print Factorial of Given Number | C Programming Examples

C Program to Calculate Factorial of Given Number  | C Programming Examples

Write a C program for Factorial of Given Number. How to Print Factorial of Given Number in C programming. Logic for Factorial of Given Number  in C program.

C Programming Examples:

1. Write a C Program to Calculate Factorial of Given Number 

2. C program to Find Factorial of Given Number 

3. How to Print Factorial of Given Number  in C Programming

C Program to Calculate Factorial of Given Number  :

#include<stdio.h>

int main()

{

  int number,factorial=1,i;

  printf("Enter a number for knowing it's factorial\n");

  scanf("%d",&number);

  for(i=1;i<=number;i++)

  {

   factorial=factorial*i;

  }

  printf("%d!=%d\n",number,factorial);

}

Output: 

Enter a number for knowing it's factorial

5

5!=120

Explanation of Calculate Factorial of Given Number in C Programming :

Initializes :

number-for storing given number

factorial-for storing factorial of a number.

i for using in loop

Prompting user for input through scanf statement.

The main logic goes here:(factorial=factorial*i)

i=1 and i<=number(say 5) which is true then factorial=1*1=1 then i increments by 1

Now i=2 and as i<=5 which is true then factorial=1*2=2.Now i increases by 1

Now i=3 and as i<=5 which is true then factorial=2*3=6.Now i increases by 1

Now i=4 and as i<=5 which is true then factorial=6*4=24.Now i increases by 1

Now i=5 and as i<=5 which is true then factorial=24*5=120.Now i increases by 1

Now i=6 and as I is not less or equal to 5 the loop terminates

There fore it prints the factorial which is 120.

Finally print the result. 

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