I am thinking of a two-digit prime number. The special thing about my prime, though, is that if I square its two digits, the difference between these square numbers is also prime. As it happens, I ...

The New York Times has lifted the lid on Digits, a daily maths-based puzzle game. Digits is in its beta, and is essentially Countdown's numbers-based segment. Those of you who enjoy a bit of early ...

Digits is now available to play for free in beta for a limited time. Digits is now available to play for free in beta for a limited time. is a senior reporter covering technology, gaming, and more. He ...

Web/iOS: A growing number of apps now are geared toward teaching kids to code because it’s a valuable skill to learn. Code Kingdoms is another such app, but it’s wrapped in a game that kids would most ...