National Pi Day

Today is a special day for math lovers and it only comes around once a year, it's National Pi Day.

WSU Tri-Cities celebrates the day with free pies and a competition of who knows the most numbers in pi.

Computers have calculated pi to its two-quadrillonth digit.

Students at WSU Tri- Cities didn't take it that far but some students knew about 23 digits, and more importantly everyone got pie.