Table Of Contents
Last updated on February 24th, 2025
Roman numerals are a way of expressing numbers using symbols: I, V, X, L, C, D, and M. Roman numerals are used in royal titles, book names, sequences, and more. Here we will discuss Roman numerals, rules, and examples.
The royal titles, such as Henry I, Henry II, and so on, often use Roman numerals. Have you noticed these names and wondered what these symbols (I and II) represent?
Those are Roman numerals. In earlier times, people used fingers, sticks, and bones to count. As life became complex, a standard form was needed for counting. Ancient Romans used the Roman numeral system for this purpose. I (1), V (5), X (10), L (50), C (100), D (500), and M (1000) are the symbols used.
In Roman numerals, 847 is represented as DCCCXLVII, where D is 500, CCC is 300, XL is 40, and VII is 7. Let’s learn more about Roman numerals and how we write them.
There are basic rules to write a number in Roman numerals. Let's discuss some rules that need to be remembered when writing a number in Roman numerals.
The addition method is used when a smaller number is placed after a larger number. For example, VII → V + I + I → 5 + 1 + 1 = 7.
To write a larger number, certain Roman numerals can be repeated up to three times. CCC → 300.
If a smaller number precedes a larger number, we subtract the smaller number. For example, XL → L - X → 50 - 10 = 40.
Symbols cannot be repeated more than three times. Symbols like V, L, and D cannot be repeated. For example, we write 40 as XL, not XXXX.
Let’s now learn how to write 847 in Roman numerals. Follow these methods to write the number in Roman numerals.
In the expansion method, based on place value, the number is broken down. This section will explain how to write 847 in Roman numerals using this method.
To write 847 in Roman numerals, follow these steps:
Step 1: Break the number based on place value: hundreds, tens, and ones. For 847, we write it as 800 + 40 + 7.
Step 2: Convert each number into Roman numerals:
800 in Roman numerals — DCCC
40 in Roman numerals — XL
7 in Roman numerals — VII
Step 3: Combine them to form the Roman numeral:
Therefore, 847 in Roman numerals is DCCC (800) + XL (40) + VII (7) = DCCCXLVII.
When writing a large number in Roman numerals, we group the number.
To write 847 in Roman numerals, we group 847 as 800 + 40 + 7.
800 in Roman numerals — DCCC
40 in Roman numerals — XL
7 in Roman numerals — VII
So, 847 is written as DCCCXLVII in Roman numerals.
A historian found a manuscript stating that a city was founded DCCCXLVII years ago. How many centuries ago was it founded?
A treasure chest contains DCCCXLVII gold coins to be shared equally among XLIX pirates. How many coins does each pirate receive?
Calculate the sum of CDXXIII and CDXXIV.
If a marathon runner completed a distance of DCCCXLVII kilometers in XL weeks, what was the average distance run per week?
Write the Roman Numeral for 500 + 300 + 47 using the expansion method.
Repetition rule: Certain symbols (I, X, C, M) can be repeated up to three times. Example: CCC = 300.
Hiralee Lalitkumar Makwana has almost two years of teaching experience. She is a number ninja as she loves numbers. Her interest in numbers can be seen in the way she cracks math puzzles and hidden patterns.
: She loves to read number jokes and games.