Moreover, Japanese has TWO parallel number systems (as does Korean). The Sinitic system, enumerated here, is used for naming numbers, counting with most counter

Moreover, Japanese has TWO parallel number systems (as does Korean). The Sinitic system, enumerated here, is used for naming numbers, counting with most counter words, and counting large quantities, whereas the native Japanese system is used with certain common counter words. Compare: Ｊａｐ　　Ｓｉｎ 1 ひとつ　　イチ 2 ふたつ　　ニ 3 みっつ　　サン 4 よっつ　　ヨン 5　 いつつ　　ゴ 6　 むっつ　　ロク 7　 ななつ　　シチ 8　 やっつ　　ハチ 9 ここのつ　キュウ 10　とお　　　ジュウ The native Japanese numerals are themselves variable: I have listed the forms they assume when paired with the つ counter. For example, two days is rendered as ふつか and six days as むいか. Further reading: https://en.wikipedia.org/wiki/Japanese_numerals https://en.wikipedia.org/wiki/Japanese_numerals https://japanese.stackexchange.com/questions/14959/are-there-native-japanese-numbers-greater-than-10-what-use-are-they https://japanese.stackexchange.com/questions/14959/are-there...