It's an irrational number that begins with 2.71828 Will Kenton is an expert on the economy and investing laws and regulations. He previously held senior editorial roles at Investopedia and Kapitall ...

Mathematics is full of numbers that seem to keep popping up out of nowhere. Take pi, for instance, which appears in pretty much everything. Here's another one: Euler's constant. Also called the ...

Have you ever been curious about why the number e is so popular in math? Euler’s number, which is an infinitely long decimal, close to 2.71828, pops up naturally in a surprisingly broad range of ...