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Last updated on February 21st, 2025
Roman numerals are a way of expressing numbers using symbols. I, V, X, L, C, D, and M are the symbols we use. Roman Numerals are used in royal titles, book names, sequences, and so on. Here we will be discussing Roman Numerals, rules, and examples.
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. to count earlier. 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 CCCXLVII to represent 347, where CCC is 300, XL is 40, 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 large number, there are certain Roman Numerals that can be repeated up to three times. For example, CCC → 100 + 100 + 100 = 300.
Rule 3: Subtraction Method
If a small number is followed by a large number in Roman Numerals, we subtract the smaller number from the larger number. For example, XL → L - X → 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 8 we write as VIII, not IIIIIIII.
Let’s now learn how to write 347 in Roman Numerals. Follow these methods to write the number in Roman Numerals.
In the expansion method, based on the place value, the number is broken down. In this section, we will learn how to write 347 in Roman numerals using the expansion method.
To write 347 in Roman Numerals, follow the steps:
Step 1: Break the number based on the place value: hundreds, tens, and ones.
For 347, we write it as 300 + 40 + 7.
Step 2: Converting the number into Roman Numerals:
- 300 in Roman Numeral — CCC
- 40 in Roman Numeral — XL
- 7 in Roman Numeral — VII
Step 3: Combine the Roman Numerals together.
- Therefore, 347 in Roman Numeral is CCC (300) + XL (40) + VII (7) = CCCXLVII
When writing a large number into Roman Numeral, we group the number. To write 347 in Roman Numeral, we group 347 as 300 + 40 + 7.
- 300 in Roman Numeral — CCC
- 40 in Roman Numeral — XL
- 7 in Roman Numeral — VII
So, 347 is written as CCCXLVII in Roman Numerals.
A historian found a manuscript dated CCCXLVII years ago. If the current year is MMXXIII, what year was the manuscript written?
A museum has CCCXLVII artifacts and wants to display them evenly across VII different sections. How many artifacts will be in each section?
An architect is designing a roman-themed building and plans to place CCCXLVII pillars around a circular courtyard. If the architect decides to remove XLVII pillars for a special design, how many pillars will remain?
A math competition includes a problem requiring students to find the sum of CL and CXCVII. What is the final answer in Roman numerals?
Write the Roman Numeral for the result of multiplying VII by XLIX using the expansion method.
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.