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 ...

Prime numbers have captivated mathematicians for thousands of years—and now cloud computing is helping them chase the biggest ones yet. Reading time 5 minutes A shard of smooth bone etched with ...

The Great Internet Mersenne Prime Search (GIMPS) has discovered the new largest known prime number, having 22,338,618 digits, on a university computer volunteered by Curtis Cooper for the project. The ...

Would you like to be a millionaire? There are several ways to fulfill this dream. For two decades the U.S. edition of Who Wants to Be a Millionaire? promised a million dollars if you could answer 15 ...

Meet the new largest known prime number. It starts with a 4, continues on for 23 million digits, then ends with a 1. As is true with all prime numbers, it can only be evenly divided by one and itself.