## Archive for January 4, 2011

### National Trivia Day

Here’s an interesting piece of trivia — January 4 is National Trivia Day! There are a number of ways to celebrate:

1. Call someone and relay a useless piece of information. I plan to call my friends and tell them, “Did you know that in right triangle ABC with points D, E, and F lying on lines BC, CA, and AB, respectively, that AD, BE and CF are concurrent if and only if AF/FB × BD/DC × CE/EA = 1? Have a great day.” [click]
2. Play Trivial Pursuit, Wits & Wagers, or some other trivia board game.
3. Stand on the corner of a busy street and shout trivial math facts like a town crier. I recommend correcting misconceptions: “Hear ye, hear ye! Be it known that Henry the Eighth did not invent fractions; that the Pythagorean theorem was not discovered by Pythagoras; that, for the milionth time, (a + b)2 ≠ a2 + b2; and, that a junk yard is not 3 feet of trash.”
4. Find a time machine and use it to locate the people who thought to put slotted holes in pancake flippers and ask them what the @#\$% they were thinking. Then search for the designers of bell-bottomed pants, plastic wrap that sticks to nothing but itself, and doors for which it is not intuitively obvious whether you should push or pull.
5. Take the math purity test.

### 2011 is Prime Time

It’s been eight years coming, but finally, a year that’s a prime number. This hasn’t happened since 2003, but 2011 is prime.

Express 2011 as a sum of consecutive prime numbers.

That can be done in several different ways.

As it turns out, 2011 is extra cool because it can be written as a sum of a prime number of consecutive prime numbers.

When will that happen again?

And finally…

What is the next year that will be a prime number and also be a sum of a prime number of consecutive prime numbers? (Wow, that’s a mouthful, ain’t it?)

The Math Jokes 4 Mathy Folks blog is an online extension to the book Math Jokes 4 Mathy Folks. The blog contains jokes submitted by readers, new jokes discovered by the author, details about speaking appearances and workshops, and other random bits of information that might be interesting to the strange folks who like math jokes.

## MJ4MF (offline version)

Math Jokes 4 Mathy Folks is available from Amazon, Borders, Barnes & Noble, NCTM, Robert D. Reed Publishers, and other purveyors of exceptional literature.