Here’s a number to savor: 2 43,112,609-1. Its size is mind-boggling. With nearly 13 million digits, it makes the number of atoms in the known universe seem negligible, a mere 80 digits. But its true ...

A new highest known prime number has been calculated, clocking in at nearly 5 million digits more than the previous record holder. Michelle Starr Science editor Michelle Starr is CNET's science editor ...

An integer greater than 1 that is not evenly divisible by any number other than itself, and, of course, 1. Prime numbers are considered a fundamental building block of numbers, especially number ...

Mathematicians have unveiled a new record-breaking prime number: 2 74,207,281 – 1. It’s now the highest prime number ever discovered, eclipsing the previous record by 5 million. The prime’s discoverer ...

Somewhere out there on the number line, huge prime numbers are lurking, waiting to be discovered. On Wednesday, a new one was. The Great Internet Mersenne Prime Search, an organization devoted to ...

Like physics, math has its own set of “fundamental particles”—the prime numbers, which can’t be broken down into smaller natural numbers. They can only be divided by themselves and 1. And in a new ...

Here’s a number to savor: 2 43,112,609-1. Printing out all 13 million digits in 12-point type would create a number 30 miles long. But here are a few of the digits, from the beginning and the end of ...

This article was published in Scientific American’s former blog network and reflects the views of the author, not necessarily those of Scientific American When I saw a math paper with the phrase ...