Prime factors of a number in java

Java code to get the prime factors of give number

import java.io.*;

class Test {

     public static void main(String[] args) throws IOException {

          int num,i=1,j,k;

          System.out.println("Enter the range:");

          BufferedReader br=new BufferedReader(new InputStreamReader (System.in));

          num=Integer.parseInt(br.readLine());

          while(i<=num){

              k=0;

              if(num%i==0){

                   j=1;

                   while(j<=i){

                        if(i%j==0)

                             k++;

                        j++;

                   }

                   if(k==2)

                        System.out.println(i+" is a prime factor");

              }

              i++;

          }

     }

}

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