The largest known prime number has 23 million-plus digits
An electrical engineer from Tennessee made the discovery
![prime numbers](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2018/01/010418_LH_prime_main.jpg?fit=860%2C460&ssl=1)
PRIME TIME The largest known prime number has more than 23 million digits — a new record.
Robert Brook/Getty
An electrical engineer from Tennessee made the discovery
PRIME TIME The largest known prime number has more than 23 million digits — a new record.
Robert Brook/Getty