problems in function

// CHECK NUMBER IS PRIME OR NOT

import java.util.*;
public class Main{
    

    public static void main(String[] args){
       Scanner sc = new Scanner(System.in);
       int n =sc.nextInt();
       isprime(n);
       
    }
    public static void isprime(int n){
      for(int i=2;i<n;i++){
          if(n%i==0){
              System.out.println("number is not prime");
              return;
          }
      }
      System.out.println("number is prime");
      return;
    }
       

}