Question

Solve Write a program to find the sum of the first l000 prime numbers.

Answer 1

package com.primesum;

public class Main {

public static void main(String args[]){

int number = 2;

int count = 0;

long sum = 0;

while(count < 1000){

if(isPrimeNumber(number)){

sum += number;

count++;

}

number++;

}

System.out.println(sum);

}

private static boolean isPrimeNumber(int number){

for(int i=2; i<=number/2; i++){

if(number % i == 0){

return false;

}

}

return true;

}

}

Output:

3682913