Room number 514 can be changed to room number 51A by replacing 4 with A.
We often find that many hotels or buildings do not have 13th, 14th and other floors, and some even do not have the 4th and 18th floors. Many hotel room numbers begin with 6 or 8. The big reasons are and It is related to religion, superstition, and Feng Shui. Westerners regard 13 as an unlucky number. Because of the homophony of "4", it is taboo among Chinese people.