122 in Roman Numerals

In royal titles, such as Henry I, Henry II, and so on, the Roman numerals are used to signify the order. Earlier, people counted using fingers, sticks, bones, etc. As life became more complex, a standard form was required for counting. Ancient Romans used the Roman numeral system for this purpose. The symbols are I (1), V (5), X (10), L (50), C (100), D (500), and M (1000).

In Roman numerals, we use CXXII to represent 122, 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 numbers 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, CXXII → C + X + X + I + I → 100 + 10 + 10 + 1 + 1 = 122.

Rule 2: Repetition Method

To write a larger number, there are certain Roman numerals that can be repeated up to three times. For example, XXX → 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 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.
 

Let’s now learn how to write 122 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 122 in Roman numerals using the expansion method.

To write 122 in Roman numerals, follow the steps:

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

For 122, we write it as 100 + 20 + 2.

Step 2: Convert the numbers into Roman numerals:

- 100 in Roman numeral — C
- 20 in Roman numeral — XX
- 2 in Roman numeral — II

Step 3: Combine the Roman numerals together.

Therefore, 122 in Roman numerals is C (100) + XX (20) + II (2) = CXXII.
 

When writing a large number in Roman numerals, we group the number. To write 122 in Roman numerals, we group 122 as 100 + 20 + 2.

- 100 in Roman numeral — C

- 20 in Roman numeral — XX

- 2 in Roman numeral — II
 

So, 122 is written as CXXII 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 122.

• Addition rule: The addition method is used when a large number is followed by a smaller numeral, and the values are added. For example, CXXII = C + XX + II = 100 + 20 + 2 = 122.
   
• Grouping method: Here, the given number is grouped based on its place value, and then each group is converted into its Roman numeral. For example, 122 = 100 + 20 + 2 = CXXII.
   
• Repetition rule: Certain symbols (I, X, C, M) in the Roman numeral system can be repeated only up to three times. For example, XXX = 30 (X is repeated three times).
   
• Subtraction Rule: The subtraction method is used when a smaller numeral precedes a larger one. For example, XL = L - X = 50 - 10 = 40.
   
• Limitation Rule: Certain symbols (V, L, D) cannot be repeated, and no numeral can be repeated more than three times consecutively.