Time for levity

Perhaps you saw it over the weekend, where UCLA researchers claimed to discover the largest prime number, something that is 13 million digits long.
Then, I was on campus Monday, and saw a sign for discounts in the student store based on the football game. Yes, a sign similar to the one I posted last week on the blog.
The deal is for two touchdowns, folks get 10 percent off on the Monday following a game. Three touchdowns, and folks gets 15 percent off, and it goes up to 25 percent off for five touchdowns.
Well, two of the signs I saw (didn’t take a picture this time) posted the savings for the weekend’s game was 20 percent.
Now, I wasn’t a math major, but UCLA scored 31 points, which included three field goals and a two-point conversion for returning a blocked extra point. So, by my math, and from watching the game, UCLA scored three touchdowns …worth 20 percent?