Is the number four really that unlucky???
Most of us are aware that the Chinese try to avoid the number four - whether it be a house or apartment number, phone number or even a vehicle number plate. The reason being is that the word 'four' sounds like the word 'death' in Cantonese.
It is not uncommon to see hotels or apartment blocks in Hong Kong and China where there isn't a 4th or 14th floor. There are even examples of the 13th floor also missing due to Western tradition - making the floor after the 12th the 15th!!!
The concern over the number four is cultural rather than being related to metaphysical calculations, and most traditional feng shui masters deride it as superstition. And as for the number thirteen - well I live in number thirteen and it has been very favourable for me!