This program takes a positive integer from an user and displays all the factors of that number.
Example: Display all Factors of a Number
#include <iostream>
using namespace std;
int main() {
int n, i;
cout << "Enter a positive integer: ";
cin >> n;
cout << "Factors of " << n << " are: ";
for(i = 1; i <= n; ++i) {
if(n % i == 0)
cout << i << " ";
}
return 0;
}
Output
Enter a positive integer: 60 Factors of 60 are: 1 2 3 4 5 6 10 12 15 20 30 60
In this program, an integer entered by user is stored in variable n.
Then, for loop is executed with an initial condition i = 1 and checked whether n is perfectly divisible by i or not. If n is perfectly divisible by i then, i will be the factor of n.
In each iteration, the value of i is updated (increased by 1).
This process goes until test condition i <= n becomes false,i.e., this program checks whether number entered by user n is perfectly divisible by all numbers from 1 to n and all displays factors of that number.
