Now this is on heck of a tracking number.

Using a computer powered by an off-the-shelf Intel Core i5-6600 processor, a FedEx employee from Tennessee has discovered the largest prime number known to humanity. At 23,249,425 digits long, it’s nearly a million digits longer than the previous record holder.

Source: FedEx Employee Discovers Largest Known Prime Number Containing a Staggering 23 Million Digits