The traditional Chinese numerals are used in the East Asian cultural sphere, in Greater China, in Japan, in Korea and in Vietnam and is one of the written numeral systems. They are based on Chinese characters (Hànzì) that correspond to numerals in the spoken language. Large numbers follow the Chinese tradition of grouping by 10,000.
There are two sets of characters for Chinese numerals: one for everyday writing and one for use in commercial or financial contexts. Negative numbers are formed by adding (负, 負) before the Han number.