If your birthday is 10/20/30 you look throw the digits of Pi to find 102030. Your Pi birthday is the location of 102030 (For example). The location of 102030 is 640400.
3.14 or 22/7 and the definition is A transcendental number, approximately 3.14159, represented by the symbol π, that expresses the ratio of the circumference to the diameter of a circle and appears...
The mathematical term pi means the ratio of the circumference to the diameter of a given circle; it is equal to approximately 3.1415 - you won't have to find it, I have just given it to you.