80 in Roman Numerals
80
LXXX
eighty
How LXXX is formed
| Place | Value | Symbols |
|---|---|---|
| Tens | 80 | LXXX |
| Total | 80 | LXXX |
LXXX starts with L (50) and adds XXX (30): 50 + 30 = 80. A smaller symbol written after a larger one is added.
Common mistakes
Wrong: XXC
Why isn't 80 written as XXC?
Only one smaller symbol can stand before a larger one, so XXC doesn't work. 80 is LXXX (50 + 30).
Numbers near 80
Properties of 80
- Prime factors
- 2⁴ × 5
- Divisors
- 1, 2, 4, 5, 8, 10, 16, 20, 40, 80
- Even or odd
- Even
- Prime number
- No
- Letters in LXXX
- 4
80,000 in Roman numerals
With a bar over it (vinculum), L̅X̅X̅X̅ means 80 × 1,000 = 80,000. How Roman numerals work