LCM for 18 and 49
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What's the Least Common Multiple (LCM) of 18 and 49?
Answer
LCM of 18 and 49 is
882
First common multiples: 882; 1,764; 2,646; …
882 is divisible by both: 882 ÷ 18 = 49, 882 ÷ 49 = 18 — and 49 and 18 share no factor but 1, so no smaller number is. As a common denominator: multiply the top and bottom of x/18 by 49 and of y/49 by 18.
18 and 49 are coprime (GCF = 1), so their LCM is simply the product: 18 × 49 = 882.
18 = 2 × 32
49 = 72
| Prime | 18 | 49 | Highest power |
|---|---|---|---|
| 2 | 2 | — | 2 |
| 3 | 32 | — | 32 |
| 7 | — | 72 | 72 |
— = power 0: the prime is not a factor of this number; the LCM takes it from the number that has it.
LCM = 2 × 32 × 72 = 882
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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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