When music maestro Rick Beato asks his young son Dylan Beato, "How many possible variations of a deck of playing cards are there?" His son tells him there are "52 factorial combinations." He then rattles off 80,658,175,170,943,878,571,660,636,856,403,766,975,289,505,440,883,277,824,000,000,000,000 — a number is such a mouthful, it takes him a good 30 seconds to say the whole thing. — Read the rest
