324 in Roman Numerals
324
CCCXXI (subtracted)V
three hundred twenty-four
How CCCXXIV is formed
| Place | Value | Symbols |
|---|---|---|
| Hundreds | 300 | CCC |
| Tens | 20 | XX |
| Units | 4 | I (subtracted)V |
| Total | 324 | CCCXXIV |
CCCXXIV is written one place at a time, from the largest to the smallest: CCC (300) + XX (20) + IV (4) = 324.
IV is the only subtraction: the I before the V takes away 1, so IV = 4.
Common mistakes
Wrong: CCCXXIIII
Why isn't 324 written as CCCXXIIII?
A symbol can't be repeated four times in a row. 4 is IV (5 − 1), not IIII, so 324 is CCCXXIV.
Numbers near 324
Properties of 324
- Prime factors
- 2² × 3⁴
- Divisors
- 15 divisors1, 2, 3, 4 … 324
- Even or odd
- Even
- Prime number
- No
- Letters in CCCXXIV
- 7
324 is a perfect square: 18 × 18.
324,000 in Roman numerals
With a bar over it (vinculum), C̅C̅C̅X̅X̅I̅V̅ means 324 × 1,000 = 324,000. How Roman numerals work