South and North Korea uses Arabic Numeral.

-I'm Korean.-

The numerals that most Americans use are the Indian numerals or the Arabian numerals

Roman numerals were inspired by Etruscan numerals of which Roman numerals originated from.

Twenty sever in Roman numerals is XXVII.

Twenty sever in Roman numerals is XXVII.

Twenty sever in Roman numerals is XXVII.

Twenty sever in Roman numerals is XXVII.

Twenty sever in Roman numerals is XXVII.

Twenty sever in Roman numerals is XXVII.

Twenty sever in Roman numerals is XXVII.

Twenty sever in Roman numerals is XXVII.

Twenty sever in Roman numerals is XXVII.

It depends on what kind of numerals you are talking about:

In Arabic numerals, it is 1000.

In Roman numerals, it is M.