[ColinWright]

From the article:

    For an English spam classifier that
    considers all the words in the English
    language, the number of the words (n)
    is approximately 171,476.

That's a remarkably precise number to be preceded by the word "approximately".

[gchavez2]

Agree, that was odd, it now reads:

"the number of the words (n) is approximately 170k"

Thank you for the remark.