For years, a French mathematician searched for a proof that a gigantic number is prime. His method is still used 150 years ...

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 ...

A new collection of research papers examines how humans conceptualize numbers and the numeral systems we’ve build around them ...

In your life, are things seemingly moving so fast-paced that you don't even have a chance to think? While this is happening, is the number seven making repetitive and frequent appearances on ...

Is lucky number 7 your favorite digit? Here's why you're not the only one. If you ask anyone to choose a number between one and ten, many times that person will choose lucky number 7. But why? Is it ...

The number 12 is ubiquitous — it's the number of months in a year, hours on a clock face and the number of members on a typical court jury. And today, Dec. 12, 2012, corresponds to the date 12-12-12.