Question

in java...also please give a little explanation thanks

write a method that takes an integer and returns its smallest factor greater than 1.

Example: the smallest factor of 15 is 3, and the samllest factor of 25 is 5

Answer 1

//SmallestFactor.java
import java.util.Scanner;
public class SmallestFactor {
    public static int getSmallestFactor(int n){
        // looping from 2 to n-1
        for(int i = 2;i<n;i++){
            // checking n is divisible by i
            if(n%i==0){
                // returning i
                return i;
            }
        }
        // returning n
        return n;
    }

    public static void main(String[] args) {
        Scanner scnr = new Scanner(System.in);

        // Reading input from user
        System.out.print("Enter integer: ");
        int n = scnr.nextInt();

        // printing result
        System.out.println(getSmallestFactor(n));
    }
}