LCM for 4 and 38
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What's the Least Common Multiple (LCM) of 4 and 38?
Answer
LCM of 4 and 38 is
76
First common multiples: 76, 152, 228, …
76 is divisible by both: 76 ÷ 4 = 19, 76 ÷ 38 = 2 — and 19 and 2 share no factor but 1, so no smaller number is. As a common denominator: multiply the top and bottom of x/4 by 19 and of y/38 by 2.
4 = 22
38 = 2 × 19
| Prime | 4 | 38 | Highest power |
|---|---|---|---|
| 2 | 22 | 2 | 22 |
| 19 | — | 19 | 19 |
— = power 0: the prime is not a factor of this number; the LCM takes it from the number that has it.
LCM = 22 × 19 = 76
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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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