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Last updated on May 26th, 2025

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801 in Roman Numerals

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Roman numerals are the 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.

801 in Roman Numerals for Vietnamese Students
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What is 801 in Roman Numerals?

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. 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 DCCC to represent 800 and I to represent 1. Therefore, 801 is represented as DCCCI. Let’s learn more about Roman numerals and how we write them.

801 in roman numerals

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Basic Rules for 801 in Roman Numerals

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, DCCCI → D + C + C + C + I → 500 + 100 + 100 + 100 + 1 = 801.

 

Rule 2: Repetition Method

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

 

Rule 3: Subtraction Method

If a small number precedes a large number in Roman numerals, we subtract the smaller number from the large number. For example, IX → X - I → 10 - 1 = 9.

 

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.

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How to Write 801 in Roman Numerals

Let’s now learn how to write 801 in Roman numerals. Follow these methods to write the number in Roman numerals.

 

  • By Expansion Method
  • By Grouping Method
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801 in Roman Numerals by Expansion Method

In the expansion method, based on the place value, the number is broken down. In this section, we will learn how to write 801 in Roman numerals using the expansion method.

 

To write 801 in Roman numerals, follow the steps:

 

Step 1: Break the number down based on the place value, such as ones, tens, hundreds, etc. For 801, we write it as 800 + 1.

 

Step 2: Convert the number into Roman numerals.

  • 800 in Roman Numerals - DCCC
     
  • 1 in Roman Numerals - I

 

Step 3: Combine the Roman numerals together. Therefore, 801 in Roman numerals is DCCC (800) + I (1) = DCCCI

Professor Greenline from BrightChamps

801 in Roman Numerals by Grouping Method

When writing a large number in Roman numerals, we group the number. To write 801 in Roman numerals, we group 801 as 800 + 1.

 

  • 800 in Roman Numerals - DCCC
     
  • 1 in Roman Numerals - I

 

So, 801 is written as DCCCI in Roman numerals.

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Common Mistakes and How to Avoid Them in 801 Roman Numerals

Students 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.

Mistake 1

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Errors in repetition method

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The repetition method can be confusing for beginners as it states that Roman numerals cannot be repeated more than three times. In contrast, some of the Roman numerals such as V, L, and D cannot be repeated.

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801 in Roman Numerals Examples

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Problem 1

Calculate the total distance covered if a traveler journeys DCCC miles and then an additional I mile.

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The total distance covered is DCCCI.

Explanation

To find the total distance, add the two distances together.

DCCC = 800

I = 1

800 + 1 = 801

801 in Roman Numerals is DCCCI.

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Problem 2

A museum displays CCCXLIV artifacts in one gallery and CDLVII artifacts in another. What is the total number of artifacts displayed?

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The total number of artifacts is DCCCI.

Explanation

To find the total number of artifacts, add the numbers together.

CCCXLIV = 344

CDLVII = 457

344 + 457 = 801

801 in Roman Numerals is DCCCI.

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Problem 3

A historian has a collection of DCCCIX ancient coins and decides to donate VIII of them to a museum. How many coins does he have left?

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The historian has DCCCIC coins left.

Explanation

Subtract the number of donated coins from the total collection.

DCCCIX = 809

VIII = 8

809 - 8 = 801

801 in Roman Numerals is DCCCI.

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Problem 4

During a festival, a total of DCCC people attend on the first day, and only I person attends on the second day. What is the total attendance for the festival?

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The total attendance for the festival is DCCCI.

Explanation

Add the attendance numbers from both days to find the total.

DCCC = 800

I = 1

800 + 1 = 801

801 in Roman Numerals is DCCCI.

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Problem 5

Write the Roman Numeral for the sum of 753 and 48 using the expansion method.

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The Roman Numeral for the sum of 753 and 48 is DCCCI.

Explanation

First, convert the numbers to Roman numerals and add them.

753 = DCCLIII

48 = XLVIII

753 + 48 = 801

Using the expansion method: 801 = 800 + 1 = DCCCI.

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FAQs on 801 in Roman Numerals

1.What is 800 in Roman numerals?

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2.How to write 801 in Roman numerals?

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3.What is 805 in Roman Numerals?

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4.Is DCCCI a prime number?

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5.What are the multiples of 801?

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Important Glossaries for 801 in Roman Numerals

  • Addition rule: The addition method is used when a large number is followed by a smaller numeral; here the values are added. For example, DCCCI = D + CCC + I = 500 + 300 + 1 = 801.

 

  • Grouping method: Here the given numbers are grouped based on their place value and then we convert each group into its Roman numerals. For example, 801 = 800 + 1 = DCCCI.

 

  • 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 to represent the number 300).

 

  • Subtraction rule: When a smaller numeral precedes a larger numeral, the smaller numeral is subtracted from the larger one. For example, IX = 10 - 1 = 9.

 

  • Limitation rule: Some symbols like V, L, and D cannot be repeated. For example, we cannot write VV for 10; instead, we use X.
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Hiralee Lalitkumar Makwana

About the Author

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.

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Fun Fact

: She loves to read number jokes and games.

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