VI is the symbol used to denote the number 6 in Roman Numerals. V stands for 5 and I stand for 1. We write I after V which means that we are adding two numbers, which gives VI(6).

Roman Numerals Symbols and Numbers 

Image Suggestion: An image that breaks down the numeral into its components. Example: For 6, show "V = 5" and "I = 1" with "VI = 5+1 = 6."
 

Rule 1: Addition Method

Two different symbols can be added to get the required number. For example: Here the number is 6 so we add the symbol V and I, we get VI.

Rule 2: Repetition Method

Roman numbers can be repeated to increase their value, but only up till three times. It cannot be increased more than three times, as the symbol changes from number 4 onwards the Roman numbers cannot be repeated after 3(1+1+1) which is III, so  the number 6 cannot be written as IIIIII but is written as VI.

Rule 3: Subtraction Method

In this method, the smaller number is written before the larger number, which means we subtract here. Subtract the smaller number from the larger number. For example 4(5-1), which is written as IV.

Rule 4: Limitation Rule

Few Roman numerals cannot be repeated, specifically 5(V), L (50), and D (500). 

For instance, we cannot write VV to represent 10, instead we use X.

Similarly, we cannot write 6 as IIIIII, hence the additive rule comes into action, so we add V+I = VI.

Image Suggestion: A visual chart showing the Roman numerals I, V, X, L, C, D, and M, along with their corresponding numeric values (1, 5, 10, 50, 100, 500, 1000).
 

To write 6 in Roman numerals we can simply write it using the symbol i.e., VI. It can be done by two methods :
 

In this method, we break down numbers into their individual parts. For 6 we can write it as 5+1.

In Roman numerals, 5 and 1 are represented as V and I respectively. We can combine them as 

5+1=6 = V+I=VI
 

In this method, we group numbers based on their values. Numbers starting from their larger numeral can be combined with a very small numeral to achieve the total.

These are the few combinations in which grouping can be done:

1 = I
2 = II
3 = III
4 = IV (which is 5–1)
5 = V
6 = V + I

Grouping method includes the following methods:

Additive Grouping: When a smaller numeral is placed after a larger numeral or equal numeral, then it is said to be additive grouping.

Example: VI = 5+1 = 6

Subtractive Grouping: When a smaller numeral is placed before a larger numeral, then it is said to be subtractive grouping.

Example: IV = 5-1 = 4

Repetition: A numeral can be repeated up to 3 times, and not more than that.

Example: III = 1+1+1=3

XXX= 10+10+10= 30
 

Roman numerals may seem different, but they are quite similar.

Take a look at Roman numerals that are related to 6:

I = 1
II = 2
III = 3
IV = 4
V = 5
VI = 6
VII = 7
VIII = 8
IX = 9
X = 10
 

• Additive Principle: This principle means that when numerals are combined, their values are summed together. For example, VI (5+1) +6.

• Subtractive Principle: When a smaller number precedes a larger numeral, this we get the difference of it. For example: IV (5–1) equals 4, but it is not directly applicable to 6.

• Grouping: Numbers starting from their larger numeral can be combined with a very small numeral to attain the total.

• Millennium: A millennium is a time span of 1,000 years. In Roman numerals, 1,000 is represented as M, and hence a millennium is represented as M (1000).

• Consecutive Repetition: It refers to the process of repeating the same numeral up to three times to expand its value.