Pi is the most famous irrational number, meaning that its decimal form neither ends (like 1/4 = 0.25) nor becomes repetitive (like 1/6 = 0.166666…). (To only 18 decimal places, pi is 3.141592653589793238). March 14 is celebrated as the international Pi day. Many competitions are held where contestants recite pi to biggest decimal places they can remember. How many decimal places can you recite ?