387 in Roman Numerals

The royal titles, such as Henry I, Henry II, and so on, often use Roman numerals. Have you noticed these symbols and wondered what they represent? Those are Roman numerals.

Earlier, people used fingers, sticks, bones, etc., to count. As life became complex, a standard form was required for counting. 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.

In Roman numerals, we use CCCLXXXVII to represent 387, where C is 100, L is 50, XXX is 30, V is 5, and II is 2. 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 a smaller number is placed after a larger number. For example, CCCLXXXVII → C + C + C + L + X + X + X + V + I + I → 100 + 100 + 100 + 50 + 10 + 10 + 10 + 5 + 1 + 1 = 387.

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 smaller number is followed by a larger number in Roman numerals, we subtract the smaller number from the larger one. For example, XL → L - X → 50 - 10 = 40.

Rule 4: Limitation Rule

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 LXXVV for 100; instead, we use C.

Let’s now learn how to write 387 in Roman numerals. Follow these methods to write the number in Roman numerals.

• By Expansion Method
• By Grouping Method

In the expansion method, based on the place value, the number is broken down. In this section, we will learn how to write 387 in Roman numerals using the expansion method.

To write 387 in Roman Numerals, follow the steps:

Step 1: Break the number based on place value: hundred, tens, and ones.

For 387, we write it as 300 + 80 + 7.

Step 2: Convert each number into Roman numerals:

   300 in Roman Numerals — CCC
   80 in Roman Numerals — LXXX
   7 in Roman Numerals — VII

Step 3: Combine the Roman numerals together.

Therefore, 387 in Roman Numerals is CCC (300) + LXXX (80) + VII (7) = CCCLXXXVII.

When writing a large number in Roman numerals, we group the numbers. 

To write 387 in Roman Numerals, we group 387 as 300 + 80 + 7:

   300 in Roman Numerals — CCC
   80 in Roman Numerals — LXXX
   7 in Roman Numerals — VII

So, 387 is written as CCCLXXXVII in Roman numerals.

Roman numerals follow a certain pattern, making them look similar. In this section, we will learn some numbers related to the Roman numeral 387.

CCCLXXXVII = 387
CCCLXXXVIII = 388
CCCLXXXIX = 389
CCCXC = 390
CCCXCI = 391

• Addition rule: The addition method is used when a large number is followed by a smaller numeral; here, the values are added. For example, CCCLXXXVII = CCC + LXXX + VII = 387.

• Grouping method: Here, numbers are grouped based on place value and then converted into Roman numerals. For example, 387 = 300 + 80 + 7 = CCCLXXXVII.

• Repetition rule: Certain symbols (I, X, C, M) can be repeated up to three times. For example, CCC = 300 (C is repeated three times to represent the number 300).

• Subtraction method: Used when a smaller number precedes a larger one, indicating subtraction. For example, XC = X(10) - C(100) = 90.

• Limitation rule: Some symbols like V, L, and D cannot be repeated. For example, 50 is L, not LL.