Do you know what a prime number is already? Lucky for you, this site is not just about what prime numbers are, but what significance they have and how they can actually be practical. You may already know that a prime number is a number that can only be divided (evenly) by itself and one; for example seven. But did you know that there is no end to prime numbers? Even with a trillion digits, there are numbers out there that are so enormous that we cannot begin to comprehend them, yet they are only divisible by themselves and one! There is much to learn about prime numbers, so come learn it here!