Other than for their use in cryptography, prime numbers might not be on your list of favorite topics, but prime numbers have some very interesting qualities. It’s probably been a while since you ...

In 1998, Ask Ars was an early feature of the newly launched Ars Technica. Now, as then, it's all about your questions and our community's answers. We occasionally dig into our question bag, provide ...

A prime number is a whole number greater than one that has exactly two factors. Those two factors are one and the number itself. This definition is found across many school curriculums. Examples ...