Largest known prime number discovered: 50th known Mersenne prime ever found, on computer volunteered in collaborative project
https://www.sciencedaily.com/releases/2018/01/180104164507.htm
A collaborative computer project has discovered the largest known prime number. The new prime number is nearly one million digits larger than the previous record prime number, in a special class of extremely rare prime numbers known as Mersenne primes.
Source: Great Internet Mersenne Prime Search (GIMPS)
