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 more. Here we will be discussing Roman Numerals, rules, and examples.
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 and II) represented? Those are the Roman Numerals. Ancient people used fingers, sticks, bones, etc., to count.
As life became more complex, a standard form was required. 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 DCCCLXXVII to represent 877, where D is 500, CCC is 300, L is 50, XX is 20, 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.
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.
To write a larger number, certain Roman Numerals can be repeated up to 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 larger 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.
Let’s now learn how to write 877 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 877 in Roman numerals using the expansion method. To write 877 in Roman Numerals, follow the steps:
Step 1: Break the number based on the place value: hundreds, tens, and ones. For 877, we write it as 800 + 70 + 7.
Step 2: Convert the number into Roman Numerals:
Step 3: Combine the Roman Numerals together. Therefore, 877 in Roman Numerals is DCCC (800) + LXX (70) + VII (7) = DCCCLXXVII.
When writing a large number into Roman Numerals, we group the number. To write 877 in Roman Numerals, we group 877 as 800 + 70 + 7.
So, 877 is written as DCCCLXXVII in Roman Numerals.
Students often make mistakes when writing numbers in Roman Numerals. To master Roman Numerals, we can learn a few common mistakes and the ways to avoid them.
Calculate the sum of DCCC and LXXVII.
The sum of DCCC and LXXVII is DCCCLXXVII.
To find the sum, add the two numbers.
DCCC = 800
LXXVII = 77
800 + 77 = 877
877 in Roman Numerals is DCCCLXXVII.
A historian wants to distribute MMMDCCCLXXVI coins to DCCCLXXVII researchers equally. How many coins will each researcher get?
Each researcher will get IV coins.
To find the number of coins each researcher gets, divide the total number of coins by the number of researchers.
MMMDCCCLXXVI = 3876
DCCCLXXVII = 877
3876 / 877 = 4 (with a remainder, but each gets 4 whole coins) 4 in Roman Numerals is IV.
Find the difference between CM and DCCCLXXVII.
The difference between CM and DCCCLXXVII is XXIII.
To find the difference, subtract the smaller number from the larger number.
CM = 900
DCCCLXXVII = 877
900 - 877 = 23
23 in Roman Numerals is XXIII.
A library has a total of MMDCCCLIV books and wants to organize them into DCCCLXXVII sections. How many books will be in each section?
Each section will contain III books.
To determine the number of books per section, divide the total number of books by the number of sections.
MMDCCCLIV = 2854
DCCCLXXVII = 877
2854 / 877 = 3 (with a remainder, but each section gets 3 whole books) 3 in Roman Numerals is III.
Write the Roman Numeral for 500 + 377 using the expansion method.
The Roman Numeral for 500 + 377 is DCCCLXXVII.
Step 1: Convert the numbers 500 and 377 into Roman numerals.
500 = D
377 = CCCLXXVII
Add the numbers together:
500 + 377 = 877
877 in Roman Numerals is DCCCLXXVII.
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.