738 in Roman Numerals
2026-02-28 10:10 Diff
https://brightchamps.com/en-us/math/numbers/738-in-roman-numerals

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Last updated on August 5, 2025

Roman numerals are a way of expressing numbers using symbols. I, V, X, L, C, D, and M are the symbols we use. Roman Numerals are used in royal titles, book names, sequences, and so on. Here we will be discussing Roman Numerals, rules, and examples.

What is 738 in Roman Numerals?

The royal titles, such as Henry I, Henry II, and so on. Have you noticed the names and wondered what these symbols (I and II) represented? Those are the Roman Numerals. Earlier people used to count using fingers, sticks, bones, etc., to count earlier. When life became complex, a standard form was required to count.

Ancient Romans used the Roman Numeral system to count. I (1), V (5), X (10), L (50), C (100), D (500), and M (1000) are the symbols we use to count. In Roman Numerals, we use DCCXXXVIII to represent 738, where D is 500, CC is 200, XXX is 30, and VIII is 8.

Let’s learn more about Roman numerals and how we write them.

Basic Rules for 738 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 the smaller number is placed after the larger number. For example, VIII → V + I + I + I → 5 + 1 + 1 + 1 = 8

Rule 2: Repetition Method

To write a large number, there are certain Roman Numerals that can be repeated up to three times. For example, XXX → 10 + 10 + 10 = 30

Rule 3: Subtraction Method

If a small number is followed by a large number in Roman Numerals, we subtract the smaller number from the large number. For example, IX → X - I → 10 - 1 = 9

Rule 4: Limitation Rule

The symbols cannot be repeated more than three times, and some symbols like V, L, and D cannot be repeated. For example, we won't write VV for 10; instead, we use X, and for 8, we write as VIII, not IIIIIIII.

How to Write 738 in Roman Numerals

Let’s now learn how to write 738 in Roman Numerals. Follow these methods to write the number in Roman Numerals.

  • By Expansion Method
  • By Grouping Method

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738 in Roman Numeral by Expansion Method

In the expansion method, based on the place value, the number is broken down. In this section, we will learn how to write 738 in Roman numerals using the expansion method. To write 738 in Roman Numerals, follow the steps,

Step 1: The number is broken based on the place value: ones, tens, hundreds, etc. For 738, we write it as 700 + 30 + 8

Step 2: Converting the number into Roman Numerals

  • 700 in Roman Numerals - DCC
     
  • 30 in Roman Numerals - XXX
     
  • 8 in Roman Numerals - VIII

Step 3: Combining the Roman Numerals together. Therefore, 738 in Roman Numerals is DCC (700) + XXX (30) + VIII (8) = DCCXXXVIII

738 in Roman Numeral by Grouping Method

When writing a large number into Roman Numerals, we group the numbers. To write 738 in Roman Numerals, we group 738 as 700 + 30 + 8

  • 700 in Roman Numerals — DCC
     
  • 30 in Roman Numerals — XXX
     
  • 8 in Roman Numerals — VIII
     

So, 738 is written as DCCXXXVIII in Roman Numerals.

Common Mistakes and How to Avoid Them in 738 Roman Numerals

Students make mistakes when writing a number in Roman Numerals. To master Roman Numerals, we can learn a few common mistakes and the ways to avoid them.

Problem 1

Calculate the sum of the Roman numerals CCCXXXVIII and CD.

Okay, lets begin

The sum of CCCXXXVIII and CD is DCCXXXVIII.

Explanation

CCCXXXVIII is 338 and CD is 400. Adding these together: 338 + 400 = 738. 738 in Roman numerals can be written as DCCXXXVIII.

Well explained 👍

Problem 2

A historian found DCCXXXVIII ancient coins and wants to display them in VIII rows equally. How many coins will each row have?

Okay, lets begin

Each row will have XCII coins.

Explanation

To find the number of coins per row, divide the total number of coins by the number of rows:

DCCXXXVIII / VIII

DCCXXXVIII = 738

VIII = 8

738 / 8 = 92

92 in Roman numerals can be written as XCII.

Well explained 👍

Problem 3

If you subtract CCCL from DCCXXXVIII, what Roman numeral do you get?

Okay, lets begin

The result is CCCLXXXVIII.

Explanation

DCCXXXVIII is 738 and CCCL is 350.

Subtracting these: 738 - 350 = 388.

388 in Roman numerals can be written as CCCLXXXVIII.

Well explained 👍

Problem 4

A puzzle game requires forming the number 738 using Roman numeral tiles. If you already have CDXXXVIII, what numeral do you need to reach 738?

Okay, lets begin

You need CCC to reach DCCXXXVIII.

Explanation

You have CDXXXVIII which is 438.

To find out what you need to add:

738 - 438 = 300

300 in Roman numerals is CCC.

Well explained 👍

Problem 5

Write the Roman Numeral for 738 using the expansion method.

Okay, lets begin

The Roman numeral for 738 is DCCXXXVIII.

Explanation

Using the expansion method: 738 = 700 + 30 + 8

700 = DCC

30 = XXX

8 = VIII

Combine these to get DCCXXXVIII.

Well explained 👍

FAQs on 738 in Roman Numerals

1.What is 700 in Roman numerals?

DCC is 700, as it combines D (500) and CC (200).

2.How to write 738 in Roman numerals?

Here the larger numbers are followed by smaller ones, so we use the addition method. That is DCC(700) + XXX(30) + VIII(8) = 738. So, DCCXXXVIII is 738.

3.What is 740 in Roman Numerals?

740 in Roman Numerals is written as DCCXL.

4.Is DCCXXXVIII a prime number?

No, DCCXXXVIII is not a prime number. It can be divided by 1, 2, 3, 6, 123, 246, 369, and 738.

5.What are the multiples of 738?

The multiples of 738 are 738, 1476, 2214, 2952, 3690, and so on.

Important Glossaries for 738 in Roman Numerals

  • Addition rule: The addition method is used when a large number is followed by a smaller numeral; here the values are added. For example, DCCXXXVIII = DCC + XXX + VIII = 700 + 30 + 8 = 738
     
  • Grouping method: Here the given numbers are grouped based on their place value and then converted into their Roman numerals. For example, 738 = 700 + 30 + 8 = DCCXXXVIII
     
  • Repetition rule: Certain symbols (I, X, C, M) in the Roman numeric system can be repeated only up to three times. For example, XXX = 30 (X is repeated three times to represent the number 30).
     
  • Subtraction rule: The subtraction method is used when a smaller numeral precedes a larger numeral, and the smaller numeral is subtracted from the larger one. For example, IX = 10 - 1 = 9.
     
  • Place value: The numerical value that a digit has by virtue of its position in a number. In Roman numerals, place value determines the grouping of numbers.

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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.

Fun Fact

: She loves to read number jokes and games.