197 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. 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 CXCVII to represent 197, where C is 100, XC is 90, and VII is 7. 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, VII → V + I + I → 5 + 1 + 1 = 7

Rule 2: Repetition Method

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

Rule 3: Subtraction Method

If a small number is followed by a larger number in Roman numerals, we subtract the smaller number from the larger number. This is the subtraction method. For example, XC → C - X → 100 - 10 = 90

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. Similarly, we write VIII for 8, not IIIIIIII.
 

Let’s now learn how to write 197 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 197 in Roman numerals using the expansion method.

To write 197 in Roman numerals, follow the steps:

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

For 197, we write it as 100 + 90 + 7  

Step 2: Converting the number into Roman numerals  

100 in Roman numeral — C  
90 in Roman numeral — XC  
7 in Roman numeral — VII  

Step 3: Combining the Roman numerals together.  

Therefore, 197 in Roman numeral is C (100) + XC (90) + VII (7) = CXCVII
 

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

To write 197 in Roman numerals, we group 197 as 100 + 90 + 7  

100 in Roman numeral — C  
90 in Roman numeral — XC  
7 in Roman numeral — VII  

So, 197 is written as CXCVII 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 197.

CXCV = 195  
CXCVI = 196  
CXCVII = 197  
CXCVIII = 198  
CXCIX = 199  
CC = 200  

• Addition rule: The addition method is used when a large number is followed by a smaller numeral, and here the values are added. For example, VII = V + I + I = 5 + 1 + 1 = 7.
   
• 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, 197 = 100 + 90 + 7 = CXCVII.
   
• 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, XC = C - X = 100 - 10 = 90.
   
• Limitation rule: Some Roman numerals, like V, L, and D, cannot be repeated. Also, no symbol can be repeated more than three times consecutively.