www.mikescher.com/www/statics/euler/Euler_Problem-074.php

<?php

return 
[
	'number'      => 74,
	'date'        => '2015-08-25',
	'title'       => 'Digit factorial chains',
	'abbreviated' => true,
	'steps'       => 376912541,
	'time'        => 49187,
	'width'       => 1224,
	'height'      => 833,
	'value'       => 402,
];