LCM for 23 and 45
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What's the Least Common Multiple (LCM) of 23 and 45?
Answer
LCM of 23 and 45 is
1,035
First common multiples: 1,035; 2,070; 3,105; …
1,035 is divisible by both: 1,035 ÷ 23 = 45; 1,035 ÷ 45 = 23 — and 45 and 23 share no factor but 1, so no smaller number is. As a common denominator: multiply the top and bottom of x/23 by 45 and of y/45 by 23.
23 and 45 are coprime (GCF = 1), so their LCM is simply the product: 23 × 45 = 1,035.
23 — prime
45 = 32 × 5
| Prime | 23 | 45 | Highest power |
|---|---|---|---|
| 3 | — | 32 | 32 |
| 5 | — | 5 | 5 |
| 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 = 32 × 5 × 23 = 1,035
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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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