# Find out the prime number in java

## Prime number

We will be read how to get prime number between 1 to given number. First of all we have to define a class "primenum ". Java  util package has a input  in which  Scanner input=new Scanner(System.in)  is used for reading the input stream . As in this program we are going to insert certain instruction by creating  Scanner class.
Now applying in this program we use two 'for' loop. For loop will start from 1 to entered number. And another loop will start and divide it from 2 to less than those number. If number is divided by any number that means it is not prime otherwise prime number.

## Source Code

```
import java.util.Scanner;

int n;

{

Scanner input=new Scanner(System.in);

System.out.println("Enter the Number");

n=input.nextInt();

}

public void assignprime()

{

int i;

for (i=2;i<n;i++)

{

if(n%i==0)

{

System.out.println("This is not Prime number");

break;

}

}

if(i==n)

{

System.out.println("This is Prime number");

}

}

public static void main (String args[])

{

prime.assignprime();

}

}

```