www.mikescher.com/www/statics/euler/Euler_Problem-037.php

<?php

return 
[
	'number'      => 37,
	'date'        => '2014-09-24',
	'title'       => 'Truncatable primes',
	'abbreviated' => true,
	'steps'       => 128154558,
	'time'        => 20717,
	'width'       => 2000,
	'height'      => 514,
	'value'       => 748317,
];