389 in Roman Numerals

389

CCCLXXXI (subtracted)X

three hundred eighty-nine

How CCCLXXXIX is formed

PlaceValueSymbols
Hundreds300CCC
Tens80LXXX
Units9I (subtracted)X
Total389CCCLXXXIX

CCCLXXXIX is written one place at a time, from the largest to the smallest: CCC (300) + LXXX (80) + IX (9) = 389.

IX is the only subtraction: the I before the X takes away 1, so IX = 9.

Common mistakes

Wrong: CCCLXXXVIIII

Why isn't 389 written as CCCLXXXVIIII?

A symbol can't be repeated four times in a row. 9 is IX (10 − 1), not VIIII, so 389 is CCCLXXXIX.

Wrong: CCCXXCIX

Why isn't 389 written as CCCXXCIX?

Only one smaller symbol can stand before a larger one, so XXC doesn't work. 80 is LXXX (50 + 30), so 389 is CCCLXXXIX.

Numbers near 389

Properties of 389

Prime factors
389
Divisors
1, 389
Even or odd
Odd
Prime number
Yes
Letters in CCCLXXXIX
9

389 is a prime number: it can only be divided by 1 and by itself.

389,000 in Roman numerals

With a bar over it (vinculum), C̅C̅C̅L̅X̅X̅X̅I̅X̅ means 389 × 1,000 = 389,000. How Roman numerals work

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