LCM for 11 and 15
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What's the Least Common Multiple (LCM) of 11 and 15?
Answer
LCM of 11 and 15 is
165
First common multiples: 165, 330, 495, …
165 is divisible by both: 165 ÷ 11 = 15, 165 ÷ 15 = 11 — and 15 and 11 share no factor but 1, so no smaller number is. As a common denominator: multiply the top and bottom of x/11 by 15 and of y/15 by 11.
11 and 15 are coprime (GCF = 1), so their LCM is simply the product: 11 × 15 = 165.
11 — prime
15 = 3 × 5
| Prime | 11 | 15 | Highest power |
|---|---|---|---|
| 3 | — | 3 | 3 |
| 5 | — | 5 | 5 |
| 11 | 11 | — | 11 |
— = power 0: the prime is not a factor of this number; the LCM takes it from the number that has it.
LCM = 3 × 5 × 11 = 165
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See Also
- Greatest Common Factor - Find the Greatest Common Factor (GCF) of two numbers
- Least Common Multiple of 3 Numbers - Find the Least Common Multiple (LCM) of three numbers
- Greatest Common Factor of 3 Numbers - Find the Greatest Common Factor (GCF) of three numbers
- Multiples of a Number - List the first 10 multiples of any number from 1 to 999
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