Computing prime factors may sound like an elementary math problem, but try it with a large number, say one that contains more than 600 digits, and the task becomes enormously challenging and ...

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 ...

Kaisa Matomäki has proved that properties of prime numbers over long intervals hold over short intervals as well. The techniques she uses have transformed the study of these elusive numbers. This ...

An odd new paper without peer review claims prime numbers have "genes," "roots," and “offspring." Prime numbers are essential to modern life because they underpin all of encryption. What is written ...

Prime numbers, as most of us remember from math class, are numbers greater than 1 that aren't divisible by anything other than the number 1 and themselves. For example, 2, 3, 5, 7, 11 and 13 are the ...

A prime number is a number that is only divisible by one and itself, which is essentially saying that it has no divisor. That takes half of all possible numbers off the table right away (the evens), ...

If you've graduated high-school and you're reading this article, you probably at least know the following about prime numbers: Primes are the set of all numbers that can only be equally divided by 1 ...