153 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. As 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 CLIII to represent 153, where C is 100, L is 50, and III is 3. 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 the smaller number is placed after the larger number. For example, CLIII → C + L + III → 100 + 50 + 3 = 153.

Rule 2: Repetition Method

To write a large number, there are certain Roman Numerals that can be repeated three times. 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 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 8 is written as VIII, not IIIIIIII.
 

Let’s now learn how to write 153 in Roman Numerals. Follow these methods to write the number in Roman Numerals. 

In the expansion method, based on the place value, the number is broken down. In this section, we will learn how to write 153 in Roman numerals using the expansion method.

To write 153 in Roman Numerals, follow the steps:

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

For 153, we write it as 100 + 50 + 3.

Step 2: Convert the number into Roman Numerals:

  - 100 in Roman Numeral — C
  - 50 in Roman Numeral — L
  - 3 in Roman Numeral — III

Step 3: Combine the Roman Numerals together. 

  Therefore, 153 in Roman Numeral is C (100) + L (50) + III (3) = CLIII.

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

To write 153 in Roman Numeral, we group 153 as 100 + 50 + 3:

  - 100 in Roman Numeral — C

  - 50 in Roman Numeral — L

  - 3 in Roman Numeral — III

So, 153 is written as CLIII 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 153:

• Addition rule: The addition method is used when a large number is followed by a smaller numeral; here, the values are added. For example, CLIII = C + L + III = 100 + 50 + 3 = 153.

• Grouping method: Here, the given numbers are grouped based on their place value, and then we convert each group into its Roman numerals. For example, 153 = 100 + 50 + 3 = CLIII.

• 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 rule: The subtraction method is used when a smaller numeral precedes a larger numeral. For example, IX = X - I = 10 - 1 = 9.

• Limitation rule: Some Roman numerals, like V, L, and D, cannot be repeated, and any numeral cannot be repeated more than three times in succession.