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 ...

Numbers show up in every aspect of our lives. We use them to identify streets and addresses, and provide babies with social security numbers. Without numbers, society would literally be lost. But what ...

Welcome to the gig economy. Today, more than one in three employed Americans are working as freelancers. The jobs they do take many forms--independent consultant, small business salesperson, ...

Ever wanted to impress everyone by solving complex multiplication problems in your head, without needing a pencil or paper? It's not magic; it's mental math—a superpower you can learn! This article is ...

An old joke holds that anyone with two mobile phones is either dealing drugs or having an affair – but in fact, there are plenty of legitimate reasons why you’d want to maintain two separate numbers.