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<?php function perfect($n) { if ($n < 1) { echo "Number has to be Positive."; return false; } for($i = 1; $i <= $n; $i++) { if ($n % $i == 0) { $factors[] = $i; } else { echo "$i is not a factor"; } } return ($n == array_sum($factors) / 2) ? true : false; } perfect(42); ?>
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.37, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.7
4 is not a factor5 is not a factor8 is not a factor9 is not a factor10 is not a factor11 is not a factor12 is not a factor13 is not a factor15 is not a factor16 is not a factor17 is not a factor18 is not a factor19 is not a factor20 is not a factor22 is not a factor23 is not a factor24 is not a factor25 is not a factor26 is not a factor27 is not a factor28 is not a factor29 is not a factor30 is not a factor31 is not a factor32 is not a factor33 is not a factor34 is not a factor35 is not a factor36 is not a factor37 is not a factor38 is not a factor39 is not a factor40 is not a factor41 is not a factor
preferences:
247.65 ms | 407 KiB | 394 Q