843 in Roman Numerals

The royal titles, such as Henry I, Henry II, and so on, use Roman numerals. Have you noticed the names and wondered what these symbols (I, II) represented?

Those are 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 DCCCXLIII to represent 843. Here, D is 500, CCC is 300 (100 each), XL is 40, 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, DCCCXLIII → D + CCC + XL + III → 500 + 300 + 40 + 3 = 843

Rule 2: Repetition Method

To write a large number, certain Roman numerals can be repeated up to three times. CCC → 300 (C repeated three times).

Rule 3: Subtraction Method

If a smaller number is placed before a larger number in Roman numerals, we subtract the smaller number from the larger number. For example, XL → 50 - 10 = 40

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 40 is written as XL, not XXXX.

Let’s now learn how to write 843 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 843 in Roman numerals using the expansion method.

To write 843 in Roman numerals, follow these steps:

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

For 843, we write it as 800 + 40 + 3

Step 2: Convert each number into Roman numerals.

800 in Roman numerals — DCCC

40 in Roman numerals — XL

3 in Roman numerals — III

Step 3: Combine the Roman numerals together. Therefore, 843 in Roman numerals is DCCCXLIII.

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

To write 843 in Roman numerals, we group 843 as 800 + 40 + 3.

800 in Roman numerals — DCCC

40 in Roman numerals — XL

3 in Roman numerals — III

So, 843 is written as DCCCXLIII 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 843. 

• Addition rule: The addition method is used when a large number is followed by a smaller numeral. Here, the values are added. For example, DCCCXLIII = DCCC + XL + III = 800 + 40 + 3 = 843.

• Grouping method: The given numbers are grouped based on their place value and then converted into Roman numerals. For example, 843 = 800 + 40 + 3 = DCCCXLIII.

• Repetition rule: Certain symbols (I, X, C, M) in the Roman numeric system can be repeated only up to three times. For example, CCC = 300 (C is repeated three times).

• Subtraction rule: When a smaller numeral is placed before a larger numeral, the smaller is subtracted from the larger. For example, XL = 50 - 10 = 40.

• Limitation rule: Some symbols cannot be repeated, such as V, L, and D. For example, 40 is written as XL, not XXXX.