A basic feature of number theory, prime numbers are also a fundamental building block of computer science, from hashtables to cryptography. Everyone knows that a prime number is one that cannot be ...

A prime number is a special number that can only be divided by one and itself. It makes them a pain for this fella who likes to divide things into neat, equal piles. Let’s dig further… Take the number ...

A prime number is an integer, or whole number, that has only two factors — 1 and itself. Put another way, a prime number can be divided evenly only by 1 and by itself. Prime numbers also must be ...