# Write a program to find the sum of all the prime numbers below two million

**Updated:**Nov. 28, 2020 —

**Training Time:**1 Minute

Overseen by: Archangel Macsika

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**Topic:**Generic - Java Programming

**Difficulty:** Easy

**Companies who previously asked this:** -.

**Objective:** Write a program to find the sum of all the prime numbers below two million

**Input:** None.

**Expected Output:** Find out.

### Sikademy Solution

```
package sikademy;
/**
*
* @author Archangel Macsika
*/
import java.util.logging.Logger;
// This class finds the sum of all prime numbers between two million
public class SumOfPrime {
private static final Logger LOG = Logger.getLogger(ProductOfFiveDigits.class.getName());
public static void main(String[] args) {
LOG.info("Into main");
long sumOfPrime = 0;
long number = 2000000L;
for(int i = 2; i < number; i++){
if(checkPrime(i)){
sumOfPrime += i;
}
}
LOG.info("The sum is : " + sumOfPrime);
}
// This function checks whether or not the number is prime
private static boolean checkPrime(int number){
LOG.info("Into checkPrime function");
if(number < 2){
return false;
}
if(number == 2){
return true;
}
else if (number == 3){
return true;
}
if(number%2 == 0){
return false;
}
else if(number%3 == 0){
return false;
}
int maxDivisor = (int)Math.round(Math.sqrt(number));
int divisor = 5;
while(divisor <= maxDivisor){
if(number%divisor==0 || number%(divisor+2)==0){
return false;
}
divisor+=6;
}
return true;
}
}
```