89 in Roman Numerals
89
LXXXI (subtracted)X
eighty-nine
How LXXXIX is formed
| Place | Value | Symbols |
|---|---|---|
| Tens | 80 | LXXX |
| Units | 9 | I (subtracted)X |
| Total | 89 | LXXXIX |
LXXXIX is written one place at a time, from the largest to the smallest: LXXX (80) + IX (9) = 89.
IX is the only subtraction: the I before the X takes away 1, so IX = 9.
Common mistakes
Wrong: LXXXVIIII
Why isn't 89 written as LXXXVIIII?
A symbol can't be repeated four times in a row. 9 is IX (10 − 1), not VIIII, so 89 is LXXXIX.
Wrong: XXCIX
Why isn't 89 written as XXCIX?
Only one smaller symbol can stand before a larger one, so XXC doesn't work. 80 is LXXX (50 + 30), so 89 is LXXXIX.
Numbers near 89
Properties of 89
- Prime factors
- 89
- Divisors
- 1, 89
- Even or odd
- Odd
- Prime number
- Yes
- Letters in LXXXIX
- 6
89 is a prime number: it can only be divided by 1 and by itself.
89,000 in Roman numerals
With a bar over it (vinculum), L̅X̅X̅X̅I̅X̅ means 89 × 1,000 = 89,000. How Roman numerals work