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Last updated on May 26th, 2025

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426 in Roman Numerals

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Roman numerals are a system of numerical notation used in ancient Rome, employing combinations of letters from the Latin alphabet: I, V, X, L, C, D, and M. Roman Numerals appear in various contexts like royal titles, book names, sequences, etc. Here we will discuss Roman numerals, their rules, and examples.

426 in Roman Numerals for UAE Students
Professor Greenline from BrightChamps

What is 426 in Roman Numerals?

Royal titles such as Henry I, Henry II, etc., often use Roman numerals. Have you noticed these symbols and wondered what they represent? These are Roman numerals.

 

Initially, people counted using fingers, sticks, bones, etc. As life became more complex, a standardized system was needed. Ancient Romans used Roman numerals: I (1), V (5), X (10), L (50), C (100), D (500), and M (1000).

 

In Roman numerals, we use CDXXVI to represent 426, where CD is 400, XX is 20, and VI is 6. Let's learn more about Roman numerals and how to write them.

 

426 in roman numerals

Professor Greenline from BrightChamps

Basic Rules for 426 in Roman Numerals

There are certain basic rules to write a number in Roman numerals. In this section, let’s discuss some basic rules that need to be remembered when writing a number in Roman numerals.

 

Rule 1: Addition Method

The addition method is used when a smaller number is placed after a larger number. For example, VI → V + I → 5 + 1 = 6

 

Rule 2: Repetition Method

Certain Roman numerals can be repeated up to three times. For example, XXX → 30.

 

Rule 3: Subtraction Method

If a smaller number precedes a larger number, it is subtracted. For example, IV → V - I → 5 - 1 = 4

 

Rule 4: Limitation Rule

Symbols cannot be repeated more than three times, and symbols like V, L, and D cannot be repeated. For example, 10 is not VV; it is X. For 8, we write VIII, not IIIIIIII.

Professor Greenline from BrightChamps

How to Write 426 in Roman Numerals

Let’s now learn how to write 426 in Roman numerals. Follow these methods to write the number in Roman numerals.

 

  • By Expansion Method
  • By Grouping Method
Professor Greenline from BrightChamps

426 in Roman Numeral by Expansion Method

In the expansion method, a number is broken down based on place value. In this section, we will learn how to write 426 in Roman numerals using the expansion method. To write 426 in Roman numerals, follow these steps:

 

Step 1: Break the number based on place value: hundreds, tens, and ones. For 426, we write it as 400 + 20 + 6.

 

Step 2: Convert each number into Roman numerals:

400 in Roman numerals - CD

20 in Roman numerals - XX

6 in Roman numerals - VI

 

Step 3: Combine the Roman numerals: Therefore, 426 in Roman numerals is CD (400) + XX (20) + VI (6) = CDXXVI.

Professor Greenline from BrightChamps

426 in Roman Numeral by Grouping Method

When writing a large number into Roman numerals, we group the number. To write 426 in Roman numerals, group as 400 + 20 + 6.

 

  • 400 in Roman numerals - CD
     
  • 20 in Roman numerals - XX
     
  • 6 in Roman numerals - VI

 

So, 426 is written as CDXXVI in Roman numerals.

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Common Mistakes and How to Avoid Them in 426 Roman Numerals

Students often make mistakes when writing numbers in Roman numerals. To master Roman numerals, we can learn a few common mistakes and ways to avoid them.

Mistake 1

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Errors in repetition method

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The repetition method can be confusing for beginners as it states that Roman numerals cannot be repeated more than three times. Some numerals, such as V, L, and D, cannot be repeated.

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426 in Roman Numerals Examples

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Problem 1

A historian found a document stating that a Roman army consisted of CDXXVI soldiers. If they were divided into VI equal groups, how many soldiers were in each group?

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Each group would have LXXI soldiers.

Explanation

To find the number of soldiers in each group, divide the total number of soldiers by the number of groups.

CDXXVI = 426

VI = 6

Therefore, 426 / 6 = 71. 71 in Roman numerals can be written as LXXI.

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Problem 2

A Roman merchant received a shipment of CD books. He already had XXVI books in his shop. How many books does he have in total now?

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The total number of books is CDXXVI.

Explanation

To find the total number of books, add the two quantities together.

CD = 400

XXVI = 26

400 + 26 = 426 426 in Roman numerals is CDXXVI.

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Problem 3

A Roman theater has CDXXVI seats. If CCCXCIX seats were occupied during a play, how many seats were left empty?

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There were XXVII seats left empty.

Explanation

To find the number of empty seats, subtract the number of occupied seats from the total number of seats.

CDXXVI = 426

CCCXCIX = 399

426 - 399 = 27

27 in Roman numerals can be written as XXVII.

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Problem 4

Convert the year 426 A.D. into Roman numerals.

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The year 426 in Roman numerals is CDXXVI.

Explanation

To convert the year 426 into Roman numerals, break it down into components.

400 = CD

20 = XX

6 = VI

Putting it all together: 400 + 20 + 6 = CDXXVI.

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Problem 5

A collection of Roman coins includes CDXXVI denarii. If each denarius is worth V sestertii, what is the total value of the collection in sestertii?

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The total value is MMCXXX sestertii.

Explanation

To find the total value in sestertii, multiply the number of denarii by the value of each in sestertii.

CDXXVI = 426

V = 5

426 × 5 = 2130

2130 in Roman numerals can be written as MMCXXX.

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FAQs on 426 in Roman Numerals

1.What is 9 in Roman numerals?

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2.How to write 426 in Roman numerals?

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3.What is 16 in Roman Numerals?

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4.Is CDXXVI a prime number?

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5.What are the multiples of 426?

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6.How can children in United Arab Emirates use numbers in everyday life to understand 426 in Roman Numerals?

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7.What are some fun ways kids in United Arab Emirates can practice 426 in Roman Numerals with numbers?

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8.What role do numbers and 426 in Roman Numerals play in helping children in United Arab Emirates develop problem-solving skills?

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9.How can families in United Arab Emirates create number-rich environments to improve 426 in Roman Numerals skills?

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Professor Greenline from BrightChamps

Important Glossaries for 426 in Roman Numerals

  • Addition rule: When a larger numeral is followed by a smaller numeral, add their values. E.g., VI = V + I = 5 + 1 = 6.

 

  • Grouping method: Group numbers based on place value and convert each group to Roman numerals. E.g., 426 = 400 + 20 + 6 = CDXXVI.

 

  • Repetition rule: Certain symbols (I, X, C, M) can be repeated up to three times. E.g., XXX = 30.

 

  • Subtraction rule: When a smaller numeral precedes a larger numeral, subtract it. E.g., IV = 5 - 1 = 4.

 

  • Limitation rule: Symbols like V, L, and D cannot be repeated. E.g., 10 is not VV but X.
Professor Greenline from BrightChamps

About BrightChamps in United Arab Emirates

At BrightChamps, we see numbers as more than symbols—they open doors to endless opportunities! Our mission is to help children all over the UAE grasp essential math skills, focusing today on the 426 in Roman Numerals with a special spotlight on Roman numerals—in a fun, easy-to-understand, and engaging way. Whether your child is calculating the speed of a roller coaster at Dubai Parks and Resorts, tracking scores at local football games, or managing their allowance for the latest gadgets, mastering numbers gives them confidence for everyday challenges. Our interactive lessons make learning enjoyable and straightforward. Because children in the UAE learn differently, we customize our approach to each child’s style. From Dubai’s towering skyscrapers to Abu Dhabi’s cultural heritage, BrightChamps makes math come alive and exciting throughout the UAE. Let’s bring Roman numerals to every child’s math journey!
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Hiralee Lalitkumar Makwana

About the Author

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.

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Max, the Girl Character from BrightChamps

Fun Fact

: She loves to read number jokes and games.

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