Coming finally to numbers, numbers in hebrew are traditionally written
using the numerical value of the letters, but combining them in such a
way as to produce a word which can be pronounced. So, for instance the
number 15 is usually written as TW (I'm use a standard latin alphabet
transliteration), which can be pronounced "too", and results from the
numerical value 9 of T and 6 of W. T+W = 9+6 = 15. The numerical value
of words is the base for all the Cabalistic lore. This makes almost
impossible to detect numbers in a hebrew text using statistical
analysis, because numbers can't be told apart from words.