Pi belongs to a huge mathematical group called irrational numbers, which go on forever and cannot be written as fractions.

Despite this difficulty, over the past 300 years, mathematicians have established ... Even NASA uses only 16 digits of pi for its calculations. "We approximate the value for practical purposes ...

Pi Day is Friday, March 14 and Blaze Pizza, Marco's Pizza and others are celebrating with deals and discounts on pie and ...

From pizza pies to dessert pies, many businesses and restaurants are offering deals to celebrate Pi Day. Want a slice of the ...

Pi Day is Friday, March 14, and several national chains are celebrating with deals and discounts on pie and pizza.

For two days only, on March 13 and 14, CPK Rewards members can get an Original BBQ Chicken, Pepperoni, or Traditional Cheese ...

Because pi is an irrational number, its digits do not repeat ... 11-Inch Pizza of Equal or Lesser Value for $3.14" at nearly 300 locations across North America. Plus, each guest taking advantage ...

The most accurate value for Pi, according to Guinness World Records, is more than 62 trillion digits (62,831,853,071,796 ... available at all of its nearly 300 locations across North America.