LCM for 47 and 57
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What's the Least Common Multiple (LCM) of 47 and 57?
Answer
LCM of 47 and 57 is
2,679
First common multiples: 2,679; 5,358; 8,037; …
2,679 is divisible by both: 2,679 ÷ 47 = 57; 2,679 ÷ 57 = 47 — and 57 and 47 share no factor but 1, so no smaller number is. As a common denominator: multiply the top and bottom of x/47 by 57 and of y/57 by 47.
47 and 57 are coprime (GCF = 1), so their LCM is simply the product: 47 × 57 = 2,679.
47 — prime
57 = 3 × 19
| Prime | 47 | 57 | Highest power |
|---|---|---|---|
| 3 | — | 3 | 3 |
| 19 | — | 19 | 19 |
| 47 | 47 | — | 47 |
— = power 0: the prime is not a factor of this number; the LCM takes it from the number that has it.
LCM = 3 × 19 × 47 = 2,679
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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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