/* package whatever; // don't place package name! */
 
import java.util.*;
import java.lang.*;
import java.io.*;
 
/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
	public static void main(String[] args){
        System.out.println(primzahl(12));
    }
 
    public static boolean primzahl(int i){
 
        for(int j = 2; j < i; j++){
 
            int divi = (i%j);
            if( divi == 0){
                return false;
            }  
        }
        return true;  
    }
}

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