So this just happened...
-glances to the screen-
"Oh my gosh, you're actually using factorials to solve a Layton puzzle..."
"I've used algebra to solve these before! It works."
"Yeah, but these games are designed for children to be able to solve. You shouldn't have to use that level of math. Also, there has been an Awkward Zombie comic about this."
"I know there has been an Awkward Zombie comic about this! Now hush... so if I do this, then that means the answer is 20! Let's go with that! -enters answer into game-"
"... Just... watching this process of yours is...-dumbfounded-"
"It's wonderful isn't it? 8D"
"Yup, wonderful. :')"
He proceeded to whack me upside the head, but I was laughing too hard to feel pain.
GET OFF MY LAWN!