Multiples of 15
Multiples of 15 are what you get when you multiply 15 by whole numbers. Common multiples of two numbers lead to the LCM.
Skip-counting keeps the last-digit rhythm of 15: the first ten multiples end in 5, 0, 5, 0, 5, 0, 5, 0, 5, 0. The first ten also pair to 165 in five pairs (15 + 150, 30 + 135, …) — the same numbers the multiplication table shows under other names. Because 15 is odd, consecutive multiples alternate odd and even: 15 is odd, 30 is even, 45 is odd again. The tenth multiple is the place-value shift: 150 is just 15 with a zero appended, since multiplying by ten always moves one place left. First common multiple with 2: 30, in row 2; with 3: 15 (row 1).
| # | Multiple |
|---|---|
| 1 | 15 |
| 2 | 30 |
| 3 | 45 |
| 4 | 60 |
| 5 | 75 |
| 6 | 90 |
| 7 | 105 |
| 8 | 120 |
| 9 | 135 |
| 10 | 150 |
| 11 | 165 |
| 12 | 180 |
Frequently asked questions
What are the first 12 multiples of 15?
They are 15, 30, 45, 60, 75, 90, 105, 120, 135, 150, 165, 180 — each is 15 times a whole number.
What is 15 times 6?
15 × 6 = 90.
What is the difference between a multiple and a factor?
Multiples of 15 are bigger or equal (15, 30, 45, …); factors of 15 divide it and are smaller or equal. They are two directions of the same multiplication.