19 in Roman Numerals
19
XI (subtracted)X
nineteen
How XIX is formed
| Place | Value | Symbols |
|---|---|---|
| Tens | 10 | X |
| Units | 9 | I (subtracted)X |
| Total | 19 | XIX |
XIX is written one place at a time, from the largest to the smallest: X (10) + IX (9) = 19.
IX is the only subtraction: the I before the X takes away 1, so IX = 9.
Common mistakes
Wrong: XVIIII
Why isn't 19 written as XVIIII?
A symbol can't be repeated four times in a row. 9 is IX (10 − 1), not VIIII, so 19 is XIX.
Where you'll see XIX
Super Bowl XIX was played on January 20, 1985 at Stanford Stadium in Stanford: the San Francisco 49ers beat the Miami Dolphins 38–16.
The Games of the XIX Olympiad were held in Mexico City in 1968.
The XIX Olympic Winter Games were held in Salt Lake City in 2002.
Using XIX
As the day of a date, 19 is XIX: December 19 is XII.XIX written month.day, or XIX.XII written day.month. Convert a full date
Numbers near 19
Properties of 19
- Prime factors
- 19
- Divisors
- 1, 19
- Even or odd
- Odd
- Prime number
- Yes
- Letters in XIX
- 3
19 is a prime number: it can only be divided by 1 and by itself.
19,000 in Roman numerals
With a bar over it (vinculum), X̅I̅X̅ means 19 × 1,000 = 19,000. How Roman numerals work