"I would just take "500 is u..."

You might also be wondering what it would mean to say that a number is "two and a half digits long," and you might be surprised that it is 316 \(rather than 500\) that is 2\.5 digits long — 500 is using nearly 2\.7 digits\. Why? What does that mean?

I would just take "500 is using nearly 2.7 digits" out.