13 lines
241 B
PHP
13 lines
241 B
PHP
<?php
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$num = 3;
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$tri_add = 2;
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do {
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$num += ++$tri_add;
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$divisors = 2;
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$square_root = sqrt($num);
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for($div = 2; $div <= $square_root; $div++) {
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if($num % $div == 0)
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$divisors+= 2;
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}
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} while ($divisors <= 500);
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echo $num; |