3 ms·

(5 * 5 * 5 * 5 * 5) * (4 * 4 * 4 * 4) * (3 * 3 * 3) * (2 * 2) = (4 * 3 * 2) * (5 * 4 * 3) * (5 * 4 * 3) * ((5 * 5 * 4) * (5 * 2)) = 24 * 60 * 60 * 1000