Question Number
1
Project Euler Question

If we list all the natural numbers below 10 that are multiples of 3 or 5, we get 3, 5, 6 and 9. The sum of these multiples is 23.

Find the sum of all the multiples of 3 or 5 below 1000.

Solution Found
True

File Status: Solution File found. Code from the function code_solution_1 will be used

Solution: 233168

Solution Code:

      <?php

  function code_solution_1() {
    $answer = 0;

    for($i = 0; $i<1000; $i++) {
      if($i % 5 == 0 || $i % 3 == 0)
        $answer += $i;
    }

    return $answer;
  }