340 in Roman Numerals
340
CCCX (subtracted)L
three hundred forty
How CCCXL is formed
| Place | Value | Symbols |
|---|---|---|
| Hundreds | 300 | CCC |
| Tens | 40 | X (subtracted)L |
| Total | 340 | CCCXL |
CCCXL is written one place at a time, from the largest to the smallest: CCC (300) + XL (40) = 340.
XL is the only subtraction: the X before the L takes away 10, so XL = 40.
Common mistakes
Wrong: CCCXXXX
Why isn't 340 written as CCCXXXX?
A symbol can't be repeated four times in a row. 40 is XL (50 − 10), not XXXX, so 340 is CCCXL.
Numbers near 340
Properties of 340
- Prime factors
- 2² × 5 × 17
- Divisors
- 1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340
- Even or odd
- Even
- Prime number
- No
- Letters in CCCXL
- 5
340,000 in Roman numerals
With a bar over it (vinculum), C̅C̅C̅X̅L̅ means 340 × 1,000 = 340,000. How Roman numerals work