LCM for 19 and 23
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What's the Least Common Multiple (LCM) of 19 and 23?
Answer
LCM of 19 and 23 is
437
First common multiples: 437; 874; 1,311; …
437 is divisible by both: 437 ÷ 19 = 23, 437 ÷ 23 = 19 — and 23 and 19 share no factor but 1, so no smaller number is. As a common denominator: multiply the top and bottom of x/19 by 23 and of y/23 by 19.
19 and 23 are coprime (GCF = 1), so their LCM is simply the product: 19 × 23 = 437.
19 — prime
23 — prime
| Prime | 19 | 23 | Highest power |
|---|---|---|---|
| 19 | 19 | — | 19 |
| 23 | — | 23 | 23 |
— = power 0: the prime is not a factor of this number; the LCM takes it from the number that has it.
LCM = 19 × 23 = 437
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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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