443 in Roman Numerals
443
C (subtracted)DX (subtracted)LIII
four hundred forty-three
How CDXLIII is formed
| Place | Value | Symbols |
|---|---|---|
| Hundreds | 400 | C (subtracted)D |
| Tens | 40 | X (subtracted)L |
| Units | 3 | III |
| Total | 443 | CDXLIII |
CDXLIII is written one place at a time, from the largest to the smallest: CD (400) + XL (40) + III (3) = 443.
CD and XL are subtractive pairs: in each one the smaller symbol comes first and is taken away.
Common mistakes
Wrong: CCCCXLIII
Why isn't 443 written as CCCCXLIII?
A symbol can't be repeated four times in a row. 400 is CD (500 − 100), not CCCC, so 443 is CDXLIII.
Wrong: CDXXXXIII
Why isn't 443 written as CDXXXXIII?
A symbol can't be repeated four times in a row. 40 is XL (50 − 10), not XXXX, so 443 is CDXLIII.
Wrong: CCCCXXXXIII
Why isn't 443 written as CCCCXXXXIII?
No symbol can be repeated four times in a row, so CCCC and XXXX are not used: 400 = CD, 40 = XL. Together they make CDXLIII.
Numbers near 443
Properties of 443
- Prime factors
- 443
- Divisors
- 1, 443
- Even or odd
- Odd
- Prime number
- Yes
- Letters in CDXLIII
- 7
443 is a prime number: it can only be divided by 1 and by itself.
443,000 in Roman numerals
With a bar over it (vinculum), C̅D̅X̅L̅I̅I̅I̅ means 443 × 1,000 = 443,000. How Roman numerals work