231 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 fingers, sticks, bones, etc., to count. When life became complex, a standard form was required for counting. 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 CCXXXI to represent 231, where C is 100, X is 10, and I is 1. 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 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, CCXXXI → C + C + X + X + I → 100 + 100 + 10 + 10 + 1 = 231.

Rule 2: Repetition Method

To write a large number, certain Roman numerals can be repeated up to three times. For example, III → 3.

Rule 3: Subtraction Method

If a small number is followed by a large number in Roman numerals, we subtract the smaller number from the larger 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. For 8, we write VIII, not IIIIIIII.

Let’s now learn how to write 231 in Roman numerals. Follow these methods to write the number in Roman numerals.

• By Expansion Method
• By Grouping Method
   

In the expansion method, based on the place value, the number is broken down. In this section, we will learn how to write 231 in Roman numerals using the expansion method.

To write 231 in Roman numerals, follow the steps:

Step 1: Break the number based on the place value. Place values are ones, tens, hundreds, etc.

For 231, we write it as 200 + 30 + 1.

Step 2: Convert the numbers into Roman numerals.

• 200 in Roman numerals — CC

• 30 in Roman numerals — XXX

• 1 in Roman numerals — I

Step 3: Combine the Roman numerals together.

Therefore, 231 in Roman numerals is CC (200) + XXX (30) + I (1) = CCXXXI.

When writing a large number into Roman numerals, we group the number.

To write 231 in Roman numerals, we group 231 as 200 + 30 + 1.

• 200 in Roman numerals — CC

• 30 in Roman numerals — XXX

• 1 in Roman numerals — I

So, 231 is written as CCXXXI in Roman numerals.

Roman numerals follow a certain pattern, making them look similar. In this section, we will learn some numbers related to the Roman numeral 231.

• Addition Rule: The addition method is used when a large number is followed by a smaller numeral, and the values are added. For example, CCXXXI = CC + XXX + I = 200 + 30 + 1 = 231.

• Grouping Method: Here, the given numbers are grouped based on their place value and then converted into Roman numerals. For example, 231 = 200 + 30 + 1 = CCXXXI.

• Repetition Rule: Certain symbols (I, X, C, M) in the Roman numeric system can be repeated only up to three times. For example, III = 3 (I is repeated three times to represent the number 3).

• Subtraction Method: The subtraction method is used when a smaller numeral precedes a larger one, and the smaller value is subtracted from the larger one. For example, IX = X - I = 10 - 1 = 9.

• Place Value: The numerical value that a digit has by virtue of its position in a number. For example, in 231, 2 represents 200, 3 represents 30, and 1 represents 1.