Starting from 100 million, add one after every 4 zeros: \x0d\\x0d\Yi, Zhao, Jing, Gai, Zi (generally written as "?" in Japan), soil, ditch, stream, positive, Contained\x0d\\x0d\The above are recorded in "Five Classics Arithmetic" and "Shu Shu Ji Yi". It is almost not used in digital life after the trillions, and is only found in some ancient books related to science. \x0d\\x0d\And at the end there are:\x0d\\x0d\Ganges sand, Asamkhy, Nayuta, inconceivable, immeasurable, large numbers\x0d\\x0d\These are followed by "Zai", which is also Enter every 4 zeros. However, they are all expressions passed down from Buddhism, and are rarely used except for "unbelievable". However, in Japan, which is deeply influenced by Buddhism, they can often be seen in many literary and animation works, and are often used as names of people and objects.