Pull any bill out of your wallet. See the dark green numbers on the top-left and top-right corners? Those are serial numbers, and some are more rare than others. If you happen to have paper money with ...

What is the most bizarre real number that you can imagine? Probably many people think of an irrational number such as pi (π) or Euler’s number. And indeed, such values can be considered “wild.” After ...

What is your favorite number? For many people, it may be an irrational number such as pi (π), Euler’s number (e) or the square root of 2. Even among the natural numbers (positive integers), there are ...

In corporate finance and valuation, experts and self-taught learners rely upon various guiding principles. One of those core principles is the time value of money. Whether you’re a professional in the ...

The book value of a company is the difference between that company's total assets and its total liabilities, as shown on the company's balance sheet. Book value represents the carrying value of assets ...