LARGEST PRIME FACTOR OF A NUMBER 


package com.cnc;

public class Main {

    public static void main(String[] args) {
        System.out.println(getLargestPrime(20));
        System.out.println(getLargestPrime(7));
    }
    public static int getLargestPrime(int number){
        int i,stored=number;
        
        if(number<=0) 
            return -1;
        else if(isPrime(number)){
            number=stored;
        }

        else{
            for( i = 2; i < number; i++){
               if(number%i==0){
                  stored=i;

               }
            }
        }
        return stored;
    }
    public static boolean isPrime(int n){
        for(int j =2;j<n;j++){
            if (n%j==0) return false;
            else return true;
        } return false;
    }
}
☑ Here i created a new method isTrue. if the number is prime then the number will return the
same as output. but if it is not a prime then it will return the largest number excluding 
itself.
eg: 20--->10
    7---->7


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