C++ Program for Factorial without Recursion

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Factorial of a number is the number you get by multiplying all the numbers up to that number including the number itself. The program for factorial does not use a programming technique called a recursion. a recursion happens when a function calls itself until the problem is solved.

This program is a simple computation of factorial value, hence, it is suitable for beginner learners of C++ programming. I have written this using Dev-C++ compiler version installed on a windows 7 64-bit system.

Problem Definition

The program requires user input – a positive integer value and computes the factorial of than number.

For example,

Suppose you entered number 6 , then the factorial of this number would be

1 x 2 x 3 x 4 x 5 x 6 = 720

In mathematical terms, if n is a positive integer value, the factorial of n is denoted by n! You can go through the flowchart to understand the logic of factorial applied in this program.


Flowchart - Factorial without Recursion
Flowchart – Factorial without Recursion

Program Code

// Program to compute factorial of n numbers
#include <iostream.h>
#include <stdio.h>
#include <conio.h>
int main()
int fact,i;
int n;
//Read the value of N
cout << "Enter value of N:" ;
cin >> n;
//Initialize Factorial to 1 and i to 1
fact = 1;
i = 1;
fact = fact * i;
} // Print the value of factorial
cout << "_";cout << "\n\n";
cout << "Factorial of N:" << "t" << fact << endl;
cout << "_";cout << "\n\n";
return 0;


Output-Factorial without Recursion
Output-Factorial without Recursion
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