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 ...
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.
Update, Jan. 4, 2018: On Wednesday, the Great Internet Mersenne Prime Search announced that a computer owned by Jonathan Pace in Germantown, Tennessee, discovered a new prime number. At 23,249,425 ...