Last updated on May 26th, 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. 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 DCCLXXIII to represent 773. Here, D is 500, CC is 200, L is 50, XX is 20, 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.
The addition method is used when the smaller number is placed after the larger number. For example, VII → V + II → 5 + 2 = 7
To write a large number, there are certain Roman Numerals that can be repeated three times. For example, CCC → 300.
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
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 is written as VIII, not IIIIIIII.
Let’s now learn how to write 773 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 773 in Roman numerals using the expansion method. To write 773 in Roman Numerals, follow the steps:
Step 1: Break the number based on the place value. Place value that is ones, tens, hundreds, etc. For 773, we write it as 700 + 70 + 3
Step 2: Converting the number into Roman Numerals
Step 3: Combining the Roman Numerals together. Therefore, 773 in Roman Numerals is DCC (700) + LXX (70) + III (3) = DCCLXXIII
When writing a large number into Roman Numerals, we group the number. To write 773 in Roman Numerals, we group 773 as 700 + 70 + 3
So, 773 is written as DCCLXXIII in Roman Numerals.
Students often make mistakes when writing a number in Roman Numerals. To master Roman Numerals, we can learn a few common mistakes and the ways to avoid them.
A historian discovers an ancient artifact from DCCLXXIII AD. How many years ago was this from the current year 2023?
The artifact is 1250 years old.
To determine how many years ago DCCLXXIII AD was from 2023, subtract 773 from 2023: 2023 - 773 = 1250.
Therefore, the artifact is 1250 years old.
An architect is designing a building with DCC floors, and each floor has LIII rooms. Calculate the total number of rooms in the building.
The total number of rooms in the building is 41,033.
To find the total number of rooms, multiply the number of floors by the number of rooms per floor:
DCC = 700
LIII = 53
700 × 53 = 37
100 + 3,933 = 41,033.
Therefore, the building has 41,033 rooms.
If a marathon runner completed DCCLXXIII kilometers over a series of races, and each race was XXXV kilometers long, how many races did the runner complete?
The runner completed approximately 22 races.
To find the number of races, divide the total kilometers by the kilometers per race:
DCCLXXIII = 773
XXXV = 35
773 ÷ 35 = 22.0857.
Rounding down, the runner completed 22 races.
Convert the sum of CDXLIV and CCCXXIX into Roman numerals.
The sum of CDXLIV and CCCXXIX is DCCLXXIII.
First, convert Roman numerals to integers:
CDXLIV = 444
CCCXXIX = 329
444 + 329 = 773.
773 in Roman Numerals is DCCLXXIII.
A collection of DCCLXXIII coins is divided equally among XLV people. How many coins does each person receive?
Each person receives XVII coins.
To find out how many coins each person receives, divide the total number of coins by the number of people:
DCCLXXIII = 773
XLV = 45
773 ÷ 45 = 17.1778.
Rounding down, each person receives 17 coins. 17 in Roman numerals is XVII.
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.