What’s the largest known Prime Number?
A282,589,933 − 1
B282,589,933 − 5
CNone of these
D282,589,933 − 3
Correct answer
A. 282,589,933 − 1
Explanation
The largest known prime number (as of September 2021) is 282,589,933 − 1, a number which has 24,862,048 digits when written in base 10. It was found via a computer volunteered by Patrick Laroche of the Great Internet Mersenne Prime Search (GIMPS) in 2018.