Question

What is the smallest positive number that is evenly divisible by all of the numbers from 1 to 20?

Answer 1

Solution: To find the smallest positive number run the following code

<?php
$y = 0;
$l = 20;
for ($i = $l; !$y; $i += $l) {
  for ($j = 2; $j < $l; $j++) {
    if ($i % $j == 0) {
      $y = 1;
    }
    else {
      $y = 0;
      break;
    }
  }
  if ($y) {
    echo $i;
    break;
  }
}
?>