Factorial of a Number using Recursion

0 June 21, 2021

In this example, We will learn a program to Factorial of a Number using Recursion. Before that, You must have knowledge of the following topics.

Make sure you have knowledge of Recursive Function.

Download Application: Learn C Programming with Live Compiler

Now, we will look on algorithm and flowchart and we will write flowchart of plain program. i.e without using recursive function.

We can also find the factorial without using recursive function or any functions. Below is the code


int main(){
    int num, fact=1, i;
    printf("Enter a number: ");
    scanf("%d", &num);

    for( i = num; i > 0; i-- ){
        fact *= i;
    printf("\nFactorial of  %d is  %d", num, fact);
    return 0;



The algorithm of above program is

Step 1: Start
Step 2: Declare Variable n, fact, i
Step 3: Read number from User
Step 4: Initialize Variable fact=1 and i=num
Step 5: Repeat Until i > 0
            Decrease i by 1
Step 6: Print fact
Step 7: Stop


This is the flowchart of this program

Flowchart : Factorial of a Number using Recursion

CODE: Factorial of a Number using Recursion

Now, We will learn a code to find Factorial of a any Number using Recursion.


//Function Prototype
int fact(int);

int main(){
    int num;
    printf("Enter a number: ");
    scanf("%d", &num);
    printf("\nFactorial of  %d is  %d", num, fact(num));
    return 0;


int fact(int a){

    if( a == 1 || a == 0 )
        return 1;
        return ( a * fact( a - 1 ) );

The output of above program is

Enter a number: 5
Factorial of  5 is  120
Notify of
Inline Feedbacks
View all comments

Join Our Newsletter Now

Get the latest tutorials, examples and projects updates.



Ads Blocker Detected!!!

We have detected that you are using extensions to block ads. Please support us by disabling these ads blocker.

Disable Ad Block

Want Same System