Clojurians Log v2

Hi On the phone number problem The first test for the phone-number/number function is supposed to return a clean number:

(deftest cleans-number
  (is (= "1234567890" (phone-number/number "(123) 456-7890"))))

But the explanation text states: > The format is usually represented as > (NXX)-NXX-XXXX > where N is any digit from 2 through 9 and X is any digit from 0 through 9. Should the number in the first test not return an invalid number? Because the first block 123 starting with 1.