21 in Words

# 21 in Words

Edited By Team Careers360 | Updated on Feb 14, 2023 10:40 AM IST

## Introduction

21 is written as “Twenty-One”. Now, we will try to understand its significance with the help of an example. Suppose we bought 1 kg Onion for Rs 21, then we say that “I bought 1kg Onion for Twenty-One Rupees. This article will help you understand how to write 21 in words using English alphabets.

## Place Value Chart for 21

21 is a 2-digit number. The place value chart of 21 is as follows:

 Number Tens Ones 21 2 1

We can see that there is 1 in the one's place and 2 in the tens place.

## How to Write 21 in Words?

The place value system as we use today, is a derived version of the Place value numbering system invented in India. After the invention of zero, it made the place value system more effective to use. Starting from a unit place (right side), we keep going towards the left. But while naming the numbers, we read them from right to left, as mentioned in the above chart. So, while converting a two-digit number in words, we use the tens digit as twenty, thirty, forty, and so on. And, this is followed by the unit digit number. Hence, the number 21 is read as, “Twenty-One”.

## Expanded form of 21

The expanded form of 21 is as follows:

\begin{aligned}

&2 \times \text { Ten }+1 \times \text { One } \\

&=2 \times 10+1 \times 1 \\

&=20+1 \\

&=21 \\

&=\text { Twenty One }

\end{aligned}

• 21 is a natural number which is succeeded by 20 and preceded by 22.

• 21 is an odd number because it leaves a remainder ‘1’ when divided by 2.

• The numbers which leave a remainder ‘1’ when divided by 2 are odd numbers.

• 21 is a composite number because it has 1, 3, 7, and 21 as its factors.

• Square root of 21 is 4.58, hence it is not a perfect square.

• The cube root of 21 is 2.75, hence it is not a perfect cube.

• In roman numerals 21 is written as XXI

You can find out the detailed other number in words article list below:-

 20000 in Words 350000 in Words 50 in Words 65000 in Words 18000 in Words 28000 in Words 150 in Words 80 in Words 49000 in Words 400 in Words 11800 in Words 13500 in Words 12 in Words 71000 in Words 55000 in Words 150000 in Words 24000 in Words 59000 in Words 900 in Words 27000 in Words 12000 in Words 14400 in Words 12400 in Words 300000 in Words 17 in Words 12800 in Words 75 in Words 33000 in Words 21000 in Words 1180 in Words 41000 in Words 36000 in Words 1999 in Words 28 in Words 57000 in Words 4500 in Words 85000 in Words 95000 in Words 1200 in Words 14500 in Words 83000 in Words 48000 in Words 49 in Words 500000 in Words 60 in Words 70 in Words 10500 in Words 1100 in Words 25 in Words 27000 in Words 31000 in Words 34000 in Words 400000 in Words 7500 in Words 800 in Words 15500 in Words 16500 in Words 19500 in Words 250000 in Words 43000 in Words 44 in Words 45 in Words 47000 in Words 63000 in Words 6500 in Words 9500 in Words 99 in Words 10000000 in Words 1400 in Words 140000 in Words 200 in Words 1 to 100 in Words 4 in Words 41 in Words 52000 in Words 110000 in Words 125000 in Words 130000 in Words 2 in Words 23 in Words 24 in Words 33 in Words 35 in Words 450000 in Words 48 in Words 51000 in Words 54000 in Words 58000 in Words 5900 in Words 7 in Words 700 in Words 95 in Words 96000 in Words 12600 in Words 1900 in Words 20500 in Words 2400 in Words 26 in Words 2800 in Words 31 in Words 42 in Words 47 in Words 56000 in Words 600000 in Words 66000 in Words 68000 in Words 84000 in Words 88000 in Words 98 in Words 99999 in Words 11200 in Words 1200000 in Words 21500 in Words 27 in Words 29 in Words 32 in Words 32500 in Words 3300 in Words 350 in Words 3540 in Words 3600 in Words 37500 in Words 43 in Words 46 in Words 61000 in Words 67000 in Words 76000 in Words 800000 in Words 9 in Words 99000 in Words 96 in Words 10 in Words 1050 in Words 1111 in Words 120 in Words 1250 in Words 13200 in Words 180000 in Words 2000000 in Words 2300 in Words 24500 in Words 25500 in Words 27500 in Words 29500 in Words 26500 in Words 31500 in Words 37 in Words 38500 in Words 450 in Words 5000000 in Words 700000 in Words 72 in Words 77000 in Words 81000 in Words 85 in Words 86000 in Words 88 in Words 92000 in Words 93000 in Words 94 in Words 11100 in Words 11300 in Words 12200 in Words 123 in Words 13600 in Words 13900 in Words 15400 in Words 175000 in Words 1770 in Words 23600 in Words 29500 in Words 30500 in Words 33500 in Words 3700 in Words 3800 in Words 4200 in Words 42500 in Words 69000 in Words 7080 in Words 79000 in Words 82000 in Words 900000 in Words 97000 in Words 100000000 in Words 1000000000 in Words 3100 in Words 4700 in Words 4900 in Words 10700 in Words 1 to 20 in Words

1. Is 21 an even number?

21 is not an even number because it is not divisible by 2. The numbers which do not leave any remainder when divided by 2 are even numbers. So, 21 is an odd number.

2. Why is 21 not a prime number?

21 has more than two factors: 1, 3, 7, and 21. Hence, it is not a prime number.

3. How do we write “Twenty-One” in numerals?

Twenty-One is written as 21.

4. Subtract 29 from 50 and write the value in words.

Subtracting 29 from 50, we get 21. In words, 21 is written as “Twenty One”.

5. Add 21 and 39 and write the value in words.

Adding 21 and 39, we get 60. In words, 60 is written as “Sixty”.

Get answers from students and experts