Multiples of 18

The multiples of 18 are 18, 36, 54, 72, 90, 108, 126, 144, 162, 180, and so on — every number you get by multiplying 18 by a whole number. The list never ends.

Below you will find the full multiplication table for 18 up to 100×, the complete list of multiples up to 1,000, a calculator that checks any number for you, and the factors and patterns behind them.

Parity: Even
Type: Composite
Factors: 6
Prime factors: 2 × 3²
18 squared: 324
Multiples under 1,000: 55

Multiply 18 by anything

Type any whole number and the answer appears instantly.

Is a number a multiple of 18?

Divides the number by 18 and tells you whether it goes in exactly.

Multiples of 18 on a 100 chart

Every highlighted square below is a multiple of 18. Seeing them shaded in makes the spacing obvious: each one sits exactly 18 steps after the last.

The 5 multiples of 18 between 1 and 100.

Skip counting by 18

Counting in 18s is the fastest way to reach any multiple without multiplying. Each hop below adds another 18.

Skip counting from 0 in steps of 18.

Table of multiples of 18 (1 to 100)

The complete multiplication table for 18, from 18 × 1 to 18 × 100.

#	Expression	Result
1	18 × 1	18
2	18 × 2	36
3	18 × 3	54
4	18 × 4	72
5	18 × 5	90
6	18 × 6	108
7	18 × 7	126
8	18 × 8	144
9	18 × 9	162
10	18 × 10	180
11	18 × 11	198
12	18 × 12	216
13	18 × 13	234
14	18 × 14	252
15	18 × 15	270
16	18 × 16	288
17	18 × 17	306
18	18 × 18	324
19	18 × 19	342
20	18 × 20	360
21	18 × 21	378
22	18 × 22	396
23	18 × 23	414
24	18 × 24	432
25	18 × 25	450
26	18 × 26	468
27	18 × 27	486
28	18 × 28	504
29	18 × 29	522
30	18 × 30	540
31	18 × 31	558
32	18 × 32	576
33	18 × 33	594
34	18 × 34	612
35	18 × 35	630
36	18 × 36	648
37	18 × 37	666
38	18 × 38	684
39	18 × 39	702
40	18 × 40	720
41	18 × 41	738
42	18 × 42	756
43	18 × 43	774
44	18 × 44	792
45	18 × 45	810
46	18 × 46	828
47	18 × 47	846
48	18 × 48	864
49	18 × 49	882
50	18 × 50	900
51	18 × 51	918
52	18 × 52	936
53	18 × 53	954
54	18 × 54	972
55	18 × 55	990
56	18 × 56	1,008
57	18 × 57	1,026
58	18 × 58	1,044
59	18 × 59	1,062
60	18 × 60	1,080
61	18 × 61	1,098
62	18 × 62	1,116
63	18 × 63	1,134
64	18 × 64	1,152
65	18 × 65	1,170
66	18 × 66	1,188
67	18 × 67	1,206
68	18 × 68	1,224
69	18 × 69	1,242
70	18 × 70	1,260
71	18 × 71	1,278
72	18 × 72	1,296
73	18 × 73	1,314
74	18 × 74	1,332
75	18 × 75	1,350
76	18 × 76	1,368
77	18 × 77	1,386
78	18 × 78	1,404
79	18 × 79	1,422
80	18 × 80	1,440
81	18 × 81	1,458
82	18 × 82	1,476
83	18 × 83	1,494
84	18 × 84	1,512
85	18 × 85	1,530
86	18 × 86	1,548
87	18 × 87	1,566
88	18 × 88	1,584
89	18 × 89	1,602
90	18 × 90	1,620
91	18 × 91	1,638
92	18 × 92	1,656
93	18 × 93	1,674
94	18 × 94	1,692
95	18 × 95	1,710
96	18 × 96	1,728
97	18 × 97	1,746
98	18 × 98	1,764
99	18 × 99	1,782
100	18 × 100	1,800

Multiples of 18 up to 100

18, 36, 54, 72, 90

There are 5 multiples of 18 between 1 and 100.

Multiples of 18 up to 1000

18, 36, 54, 72, 90, 108, 126, 144, 162, 180, 198, 216, 234, 252, 270, 288, 306, 324, 342, 360, 378, 396, 414, 432, 450, 468, 486, 504, 522, 540, 558, 576, 594, 612, 630, 648, 666, 684, 702, 720, 738, 756, 774, 792, 810, 828, 846, 864, 882, 900, 918, 936, 954, 972, 990

That is 55 multiples of 18 below 1,000, ending at 990.

Factors of 18

Factors are the mirror image of multiples: they divide into 18 exactly, rather than being built from it. The factors of 18 are 1, 2, 3, 6, 9, 18.

Each arc joins a pair of factors that multiply to 18.

Written as pairs: 1 × 18, 2 × 9, 3 × 6.

Broken all the way down into primes, 18 = 2 × 3².

Common multiples of 18 and other numbers

The lowest common multiple (LCM) of two numbers is the smallest number that appears in both of their multiplication tables. Here is 18 paired with the numbers it is most often compared to.

Pair	LCM	Greatest common factor	Next common multiple
18 and 2	18	2	36
18 and 3	18	3	36
18 and 4	36	2	72
18 and 5	90	1	180
18 and 6	18	6	36

How to find the multiples of 18

Start at 18 and keep adding 18. That gives 18, 36, 54, 72, 90, and the pattern continues for as long as you want to go. Multiplying is simply a shortcut for the same thing: 18 × 7 = 126 saves you counting seven hops one at a time.

Patterns in the multiples of 18

Because 18 is even, every one of its multiples is even too — you will never find an odd number in this table.

The last digits repeat in a cycle of 5: 8, 6, 4, 2, 0, then back to the start. Spotting that cycle is a fast way to rule out a wrong answer.

Frequently asked questions

What are the multiples of 18?

The multiples of 18 are 18, 36, 54, 72, 90, 108, 126, 144, 162, 180, and so on. Each one is 18 multiplied by a whole number, so the list continues without end.

What are the multiples of 18 up to 100?

There are 5 multiples of 18 between 1 and 100: 18, 36, 54, 72, 90.

What are the multiples of 18 up to 1000?

There are 55 multiples of 18 below 1,000. They run from 18 up to 990.

What is the 10th multiple of 18?

The 10th multiple of 18 is 18 × 10 = 180.

What are the factors of 18?

The factors of 18 are 1, 2, 3, 6, 9, 18 — 6 in total. Factors divide into 18; multiples are built out of it.

Is 18 a prime number?

No. 18 is a composite number — it has 6 factors, and breaks down into 2 × 3².

What is the LCM of 18 and 2?

The lowest common multiple of 18 and 2 is 18. It is the first number that appears in both multiplication tables.