73 in Roman Numerals

The royal titles, such as Henry I, Henry II, and so on, often use Roman numerals. 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 LXXIII to represent 73, where L is 50, X is 10, 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, LXXIII → L + X + X + I + I + I → 50 + 10 + 10 + 1 + 1 + 1 = 73.

Rule 2: Repetition Method

To write a large number, there are certain Roman numerals that 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 large number. For example, IX → X - I → 10 - 1 = 9.

Rule 4: Limitation Rule

The symbols cannot be repeated more than three times, and symbols like V, L, and D cannot be repeated. For example, we won't write LL for 100; instead, we use C, and for 8, we write VIII, not IIIIIIII.

Let’s now learn how to write 73 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 73 in Roman numerals using the expansion method.

To write 73 in Roman numerals, follow these steps:

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

For 73, we write it as 50 + 20 + 3.

Step 2: Convert the numbers into Roman numerals.

            50 in Roman numerals is L.
            20 in Roman numerals is XX.
            3 in Roman numerals is III.

Step 3: Combine the Roman numerals together.
 

Therefore, 73 in Roman numerals is L (50) + XX (20) + III (3) = LXXIII.

When writing a large number into Roman numerals, we group the number. To write 73 in Roman numerals, we group 73 as 50 + 20 + 3.

50 in Roman numerals is L.

20 in Roman numerals is XX.

3 in Roman numerals is III.

So, 73 is written as LXXIII 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 73.

• Addition rule: The addition method is used when a large number is followed by a smaller numeral, and the values are added. For example, LXXIII = L + XX + III = 50 + 20 + 3 = 73.

• Grouping method: Here, the given numbers are grouped based on their place value and then converted into Roman numerals. For example, 73 = 50 + 20 + 3 = LXXIII.

• Repetition rule: Certain symbols (I, X, C, M) in the Roman numeral 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: If a smaller numeral precedes a larger numeral, it is subtracted. For example, IV = 5 - 1 = 4.

• Limitation rule: Some symbols, such as V, L, and D, cannot be repeated. For example, 100 is written as C, not LL.