Multiples of 21

What are multiples of 21?

Multiples of 21 are numbers that you get when you multiply 21 by whole numbers. These can be written as 21, 42, 63, and so on.

How to calculate multiples

To find the multiples of 21, multiply it by any whole number using this formula:

21 × n = multiple

Multiples of 21 Table (First 50)

n	21 × n
1	21
2	42
3	63
4	84
5	105
6	126
7	147
8	168
9	189
10	210
11	231
12	252
13	273
14	294
15	315
16	336
17	357
18	378
19	399
20	420
21	441
22	462
23	483
24	504
25	525
26	546
27	567
28	588
29	609
30	630
31	651
32	672
33	693
34	714
35	735
36	756
37	777
38	798
39	819
40	840
41	861
42	882
43	903
44	924
45	945
46	966
47	987
48	1008
49	1029
50	1050

Examples and Sample Calculations

Here are some common calculations for the multiples of 21, including practical examples of where you might see these values:

21 × 1 = 21: One unit of 21, such as packaging a single box with 21 items.
21 × 5 = 105: Imagine packaging 21 units in 5 boxes - the total number of units is 105.
21 × 12 = 252: In a business context, if you have 21 items in a monthly subscription model, over 12 months, you'll get 252 items total.

Interactive Calculation

Enter a number to multiply with 21:

21 x 1 = 21

Visualizing Multiples of 21

Here's a number line that shows the first few multiples of 21:

Multiples of 21 Number Line

Further Examples

21 × 20 = 420: When scaling up, such as in wholesale orders, 21 items × 20 batches equals 420.
21 × 100 = 2100: Large-scale production where 21 units are produced in 100 batches - a total of 2100 items.

Multiples of 21 calculations with remainders

Here are some examples of numbers and how they relate to multiples of 21, including calculations with remainders:

Number	Reason	Remainder
21	21 is a multiple of 21 because 21 × 1 = 21	0
42	42 is a multiple of 21 because 21 × 2 = 42	0
63	63 is a multiple of 21 because 21 × 3 = 63	0
84	84 is a multiple of 21 because 21 × 4 = 84	0
105	105 is a multiple of 21 because 21 × 5 = 105	0
126	126 is a multiple of 21 because 21 × 6 = 126	0
147	147 is a multiple of 21 because 21 × 7 = 147	0
168	168 is a multiple of 21 because 21 × 8 = 168	0
189	189 is a multiple of 21 because 21 × 9 = 189	0
210	210 is a multiple of 21 because 21 × 10 = 210	0
231	231 is a multiple of 21 because 21 × 11 = 231	0
252	252 is a multiple of 21 because 21 × 12 = 252	0
273	273 is a multiple of 21 because 21 × 13 = 273	0
294	294 is a multiple of 21 because 21 × 14 = 294	0
315	315 is a multiple of 21 because 21 × 15 = 315	0
336	336 is a multiple of 21 because 21 × 16 = 336	0
357	357 is a multiple of 21 because 21 × 17 = 357	0
378	378 is a multiple of 21 because 21 × 18 = 378	0
399	399 is a multiple of 21 because 21 × 19 = 399	0
420	420 is a multiple of 21 because 21 × 20 = 420	0

Read More About Multiples of 21

Table of 21

Important Notes:

Definition: Multiples of 21 are numbers that can be expressed as 21 times any integer (e.g., 21, 42, 63).
Sequence: The sequence of multiples of 21 begins with 21, 42, 63, and continues infinitely by adding 21 repeatedly.
Divisibility: Any multiple of 21 is divisible by both 21 and its factors.
Calculation: To find the nth multiple of 21, multiply 21 by n (e.g., the 5th multiple of 21 is 21 × 5 = 105).
Patterns: Multiples of 21 have certain patterns in their digits. The last digit of a multiple of 21 is usually 0 or 1.

Practical Examples of Multiples of 21:

Distance: The length of 960 meters can be seen as a multiple of 21 because 21 × 20 = 960.
Time: 720 minutes (or 12 hours) is a multiple of 21 because 21 × 15 = 720.
Weight: 240 pounds is a multiple of 21 because 21 × 5 = 240.

FAQs on Multiples of 21:

What is a multiple of 21? A multiple of 21 is any number that can be expressed as 21 times an integer. For example, 21, 42, and 63 are multiples of 21.
How do you find the multiples of 21? To find multiples of 21, multiply 21 by any whole number (integer). For example:
```
 21 × 1 = 21
```
```
 21 × 2 = 42
```
```
 21 × 3 = 63
```
Is 63 a multiple of 21? Yes, 63 is a multiple of 21 because 21 × 3 = 63.

Multiple Lists

Select how many multiples you want to see for 21 and view them in a simple format.