2.718281828459045... Euler’s number e is a mathematical constant that begins with 2.71828. Just like pi (π), it is non-terminating, which means it goes on and on. It is also an irrational ...

Pi Day, celebrated on March 14, honours mathematical constant Pi, recognising its significance in mathematics, particularly in circle calculations, and promoting interest in learning and practising ...

The date- 3/14- translates nicely into 3.14, also known as Pi, the mathematical constant. So Higgins had company as she waited in line on Pie Day. That included Claire Boucher from Bethlehem.