In this post, we will learn how to display factors of a number using the C++ Programming language.
A factor is a number that divides into another number exactly and without leaving a remainder. For example, the factors of 20 are 1, 2, 4, 5, 10, and 20.
We will calculate the factors of a number entered by the user using a simple for loop statement.
So, without further ado, let’s begin this tutorial.
C++ Program to Display Factors of a Number
// C++ Program to Display Factors of a Number
#include <iostream>
using namespace std;
int main(){
int n, i;
// Asking for input
cout << "Enter a positive integer: ";
cin >> n;
// Finding factor
cout << "Factor of " << n << " are: " << endl;
for (i = 1; i <= n; i++){
if (n % i == 0){
cout << i << endl;
}
}
return 0;
}
Output
Enter a positive integer: 48
Factor of 48 are:
1
2
3
4
6
8
12
16
24
48
How Does This Program Work?
int n, i;
In this program, we have declared two integer data type variables named n and i.
// Asking for input
cout << "Enter a positive integer: ";
cin >> n;
Then, the user is asked to enter a positive integer. This number gets stored in the n named variable.
// Finding factor
cout << "Factor of " << n << " are: " << endl;
for (i = 1; i <= n; i++){
if (n % i == 0){
cout << i << endl;
}
}
For each iteration, we check whether that iteration of i is divisible by n or not. If it is exactly divisible by n, then that iteration of i is a factor of n and we print it on the screen using the cout statement.
Conclusion
I hope after going through this post, you understand how to display factors of a number using the C++ Programming language.
If you have any doubt regarding the program, then feel free to contact us in the comment section. We will be delighted to assist you.
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