137 in roman numerals

Have you ever noticed the numerals used in royal titles like Henry VIII or Elizabeth II and wondered what these symbols represent? Those are Roman numerals. In ancient times, people used fingers, sticks, bones, etc., to count. As life became more complex, a standardized form was required for counting. The ancient Romans developed the Roman numeral system for this purpose. The symbols used include I (1), V (5), X (10), L (50), C (100), D (500), and M (1000).

In Roman numerals, we use CXXXVII to represent 137, where C is 100, X is 10, 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, in CXXXVII → C + XXX + VII → 100 + 30 + 7 = 137.

Rule 2: Repetition Method

To write a larger number, certain Roman numerals can be repeated up to three times. For example, XXX → 30 (X is repeated three times).

Rule 3: Subtraction Method

If a small number is placed before a larger number in Roman numerals, it is subtracted from the larger number. For example, IX → X - I → 10 - 1 = 9.

Rule 4: Limitation Rule

Symbols cannot be repeated more than three times, and some symbols like V, L, and D cannot be repeated. For instance, we do not write VV for 10; instead, we use X.

Let’s now learn how to write 137 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 place value, the number is broken down. Here we will learn how to write 137 in Roman numerals using the expansion method.

To write 137 in Roman numerals, follow these steps:

Step 1: Break the number based on place value. For 137, we write it as 100 + 30 + 7.

Step 2: Convert each part into Roman numerals:

100 in Roman numerals is C.

30 in Roman numerals is XXX.

7 in Roman numerals is VII.

Step 3: Combine the Roman numerals:

Therefore, 137 in Roman numerals is C (100) + XXX (30) + VII (7) = CXXXVII.

When writing a larger number in Roman numerals, we group the number. For 137, we group it as 100 + 30 + 7:

100 in Roman Numerals is C.

30 in Roman Numerals is XXX.

7 in Roman Numerals is VII.

Thus, 137 is written as CXXXVII in Roman numerals.

Roman numerals follow a certain pattern that makes them look similar. In this section, we will learn some numbers related to the Roman numeral 137:

• Addition Rule: Used when a larger numeral is followed by a smaller numeral; the values are added. For example, CXXXVII = C + XXX + VII = 137.

• Grouping Method: The given numbers are grouped based on their place value, and each group is converted into Roman numerals. For example, 137 = 100 + 30 + 7 = CXXXVII.

• Repetition Rule: Certain symbols (I, X, C, M) in the Roman numeric system can be repeated only up to three times.

• Subtraction Method: Used when a smaller numeral precedes a larger numeral; the smaller numeral is subtracted. For example, IX = X  I = 9.

• Limitation Rule: Symbols like V, L, and D cannot be repeated. Repetition is limited to three times for symbols like I, X, and C.