A prime number is a number that is only evenly divisible by itself and 1. For ex

Question

A prime number is a number that is only evenly divisible by itself and 1. For example, the number 5 is prime because it can only be evenly divided by 1 and 5. The number 6, however, is not prime because it can be divided evenly by 1, 2, 3, and 6. Design a Boolean function named isPrime, which takes an integer as an argument and returns true if the argument is a prime number, or false otherwise. Use the function in a program that prompts the user to enter a number and then displays a message indicating whether the number is prime. Tip: Recall that the % operator divides one number by another and returns the remainder of the division. In an expression such as n%m, the % operator will return 0 if n is evenly divisible by m, e.g., 10%5 returns 0.

Explanation / Answer

import java.util.*; class Prime { public static void main(String args[]) { int n, i, res; boolean flag=true; Scanner scan= new Scanner(System.in); System.out.println("Please Enter a No."); n=scan.nextInt(); for(i=2;i

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