442 in Roman Numerals
442
C (subtracted)DX (subtracted)LII
four hundred forty-two
How CDXLII is formed
| Place | Value | Symbols |
|---|---|---|
| Hundreds | 400 | C (subtracted)D |
| Tens | 40 | X (subtracted)L |
| Units | 2 | II |
| Total | 442 | CDXLII |
CDXLII is written one place at a time, from the largest to the smallest: CD (400) + XL (40) + II (2) = 442.
CD and XL are subtractive pairs: in each one the smaller symbol comes first and is taken away.
Common mistakes
Wrong: CCCCXLII
Why isn't 442 written as CCCCXLII?
A symbol can't be repeated four times in a row. 400 is CD (500 − 100), not CCCC, so 442 is CDXLII.
Wrong: CDXXXXII
Why isn't 442 written as CDXXXXII?
A symbol can't be repeated four times in a row. 40 is XL (50 − 10), not XXXX, so 442 is CDXLII.
Wrong: CCCCXXXXII
Why isn't 442 written as CCCCXXXXII?
No symbol can be repeated four times in a row, so CCCC and XXXX are not used: 400 = CD, 40 = XL. Together they make CDXLII.
Numbers near 442
Properties of 442
- Prime factors
- 2 × 13 × 17
- Divisors
- 1, 2, 13, 17, 26, 34, 221, 442
- Even or odd
- Even
- Prime number
- No
- Letters in CDXLII
- 6
442,000 in Roman numerals
With a bar over it (vinculum), C̅D̅X̅L̅I̅I̅ means 442 × 1,000 = 442,000. How Roman numerals work