TIL that the largest known prime number discovered as of June 2023 is 282,589,933 − 1, a number which contains 24,862,048 digits.

https://en.wikipedia.org/wiki/Largest_known_prime_number

https://www.reddit.com/r/todayilearned/comments/152ekm1/til_that_the_largest_known_prime_number/