How to find factorial of a given number using C++ program | techgsr

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Welcome to our blog post In this program, we will learn program how to find factorial of a given number using C++ program? Here, we will implement this program with and without using user define function.


Logical Part of program:

  1. Input a number
  2. Initialize the factorial variable with 1
  3. Initialize the loop counter with N (Run loop from number (N) to 1)
  4. Multiply the loop counter’s value with factorial variable


#include <iostream>

using namespace std;


int main()


int num,i;

long int fact=1;


cout<<“Enter an integer number: “;






cout<<“Factorial of “<<num<<” is = “<<fact<<endl;


return 0;



Output :-


Enter an integer number: 6

Factorial of 6 is = 720


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