#### What are Prime Numbers?

Prime numbers are **divisible **only by the number 1 or itself. It is Whole numbers greater than 1.

For example: 2, 3, 5, 7 and 11 are the first few prime numbers.

#### How to display prime numbers between 1 to 100?

In this tutorial, We will learn how to get the **prime numbers** of any number. Here is a simple and well-commented example get the prime numbers.

**Example**:

```
public class JavaApplication {
public static void main(String[] args) {
int i;
int num = 0;
int numCheck = 100; // number
boolean isPrime = true;
//Empty String
String primeNumbersFound = "";
//Start loop 1 to numCheck
for (i = 1; i <= numCheck; i++) {
isPrime = CheckPrime(i);
if (isPrime) {
primeNumbersFound = primeNumbersFound + i + " ";
}
}
System.out.println("Prime numbers from 1 to " + numCheck + " are:");
// Print prime numbers from 1 to numCheck
System.out.println(primeNumbersFound);
}
public static boolean CheckPrime(int numberToCheck) {
int remainder;
for (int i = 2; i <= numberToCheck / 2; i++) {
remainder = numberToCheck % i;
//if remainder is 0 than number is not prime
if (remainder == 0) {
return false;
}
}
return true;
}
}
```

**Output**:

run:
Prime numbers from 1 to 100 are: 1 2 3 5 7 11 13 17 19 23 29 31 37 41 43 47 53 59 61 67 71 73 79 83 89 97 |