Java Program to Find Number is Prime Or Not

What is Prime Number?

A number that is greater than One and divisible only by 1 and itself

For Example:  2, 3, 5,7,11,13,17, 19……..

Example: Code Program

import java.util.*;

public class PrimeNum {

     public static void main(String[] args) {

          // TODO Auto-generated method stub

          Scanner sc = new Scanner(System.in);

          int num, i, f = -1;

          System.out.print("Enter Number:");

          num = sc.nextInt();

          i = 2;

          while(i<num/2) {

              if(num%i == 0)

                   f += 1;

              i+=1;

          }

          if(f == -1)

              System.out.print(num+" is Prime");

          else

              System.out.print(num+" is Not Prime");

     }

}

Output:

Python Program Code

Python Program to Find Number is Prime Or Not