# Java Program to Check Whether a Number is Prime or Not

In this example, You learn about Java program to check Prime Number.

Here you learn check prime of number in Java, You are given a number N and the task of the program to prime check in Java.

A prime number is a natural number and that is greater than 1. Prime Number is divisible by 1 or itself. Therefore, Any number divisible by any other number instead of 1 and itself is not a prime number.

0 and 1 are not considered as a prime numbers.

Java Program to check Prime of Number

``````
import java.util.*;

public class Main{

public static void main(String[] args) {
Scanner scn = new Scanner(System.in);
int n;
boolean flag = false;
n = scn.nextInt();
int count  = 0;
for(int i = 2; i*i <=n ;i++){
if(n%i == 0){
count++;
break;
}
}

if(count == 0){
System.out.println("prime");
}
else{
System.out.println("not prime");
}
}
}
``````

Output

```
12
not prime

```

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