<human>:  Is number of different US President's in 1800s a lucky number in Hong Kong?
<bot>: No, 1800 is not a lucky number in Hong Kong. There were 24 different US President's in the 1800s. 4 is an unlucky number in Chinese numerology. Where East Asian and Western cultures blend, such as in Hong Kong, it is possible in some buildings that the thirteenth floor along with all the floors with 4s to be omitted. So 1800 is not a lucky number in Hong Kong.