How to write the word "eight" in ancient Greece, but how to write it in Egypt, Rome and China?

Greek numerals are a number system represented by Greek letters. They are also called "Miletus Numbers", "Alexandria Numbers" or "Alphanumeric Numbers".

VIII-8 October

Ancient Egyptian Numbers: If you change 1 to "-"and draw one more line for each additional line, then 2 is "=" and 4 is "= =". The mathematics of the ancient Egyptians was very similar to this. Initially, 1 to 9 were not represented by different numbers, but by the same symbol "repeatedly changing".

Roman numerals are a numerical system used in ancient Rome and are still in common use today.

Eight is written in the same way as Greece.

China is "Ba"