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Last updated on February 23rd, 2025
Roman numerals are a way of expressing numbers using symbols. I, V, X, L, C, D, and M are the symbols used. Roman Numerals are employed in royal titles, book names, sequences, and more. Here we will be discussing Roman Numerals, their rules, and examples specific to 459.
Royal titles, such as Henry III or Louis XIV, often use Roman Numerals. Have you noticed these symbols and wondered what they represent? Those are Roman Numerals.
In earlier times, people used simple tools like fingers, sticks, or bones for counting. As life became more complex, a standardized form was needed for counting, which led to the Roman numeral system.
The symbols I (1), V (5), X (10), L (50), C (100), D (500), and M (1000) are used. In Roman Numerals, we use CDLIX to represent 459, where C is 100, D is 500, L is 50, IX is 9. Let’s learn more about Roman numerals and how we write them.
There are certain basic rules to write a number in Roman Numerals. In this section, let’s discuss some basic rules to remember when writing a number in Roman numerals.
The addition method is used when a smaller number is placed after a larger number. For example, XI → X + I → 10 + 1 = 11.
To write a large number, certain Roman Numerals can be repeated up to three times, such as III → 3.
When a smaller number precedes a larger number in Roman Numerals, it indicates subtraction. For example, IX → X - I → 10 - 1 = 9.
Symbols cannot be repeated more than three times, and some symbols like V, L, and D cannot be repeated. For example, we don't write VV for 10; instead, we use X.
Let’s now learn how to write 459 in Roman Numerals. Follow these methods to write the number in Roman Numerals:
In the expansion method, the number is broken down based on its place value. Here’s how to write 459 in Roman numerals using the expansion method.
Step 1: Break the number based on place value: hundreds, tens, and ones. For 459, we write it as 400 + 50 + 9.
Step 2: Convert the numbers into Roman Numerals. 400 in Roman Numerals — CD 50 in Roman Numerals — L 9 in Roman Numerals — IX
Step 3: Combine the Roman Numerals together. Therefore, 459 in Roman Numerals is CD (400) + L (50) + IX (9) = CDLIX.
When writing a large number in Roman Numerals, we group the number. To write 459 in Roman Numerals, we group 459 as 400 + 50 + 9.
So, 459 is written as CDLIX in Roman Numerals.
A historian counts CDLIX ancient coins, each engraved with the year MMXIV. How many total years are represented by these coins?
An architect designs a building plan with CCCLXXXV square meters of space and needs to add another LXXIV square meters. What is the total space in Roman numerals?
A library has a collection of CDX books and wants to distribute them evenly into IX sections. How many books will each section contain in Roman numerals?
A marathon runner completes a race in CDLIX minutes. If the runner improves their time by XXIV minutes in their next race, what will their new time be in Roman numerals?
Convert the sum of CLX and CCCXLIX into Roman numerals.
Hiralee Lalitkumar Makwana has almost two years of teaching experience. She is a number ninja as she loves numbers. Her interest in numbers can be seen in the way she cracks math puzzles and hidden patterns.
: She loves to read number jokes and games.