In fact, for those who don't pay attention to feng shui numerology, the 20th floor is a good choice, with good indoor lighting, air and vision. Moreover, numbers are originally used to distinguish floors, and the counting methods of floors in different regions are different.
For those who believe in geomantic numerology, it is unreasonable to talk about good or bad luck only on the floor. As for whether it is good or bad, it mainly depends on the five elements of residents. For example, the fifth floor of the twentieth floor is made of earth, so it is more suitable for people who belong to sheep, dragons and dogs to live a prosperous life, while those who belong to monkeys and chickens make up for it. But it is not suitable for people who belong to the genus Rattus to live in Kechong, and people who belong to the genus Equus to live in Sheqi.