What is XIX in roman numerals?

Answer 1

19

In Roman numerals I (i) = 1, V = 5, and X = 10.

So 19 can be XVIIII, or more conventionally XIX which is 10 followed by 10-1 (9).

Romans used some smaller numbers as subtractors, so IV = IIII = 4 , and IX = VIIII = 9.

Answer 2

They are numbers

Answer 3

19