LCM for 70 and 320
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What's the Least Common Multiple (LCM) of 70 and 320?
Answer
LCM of 70 and 320 is
2,240
First common multiples: 2,240; 4,480; 6,720; …
2,240 is divisible by both: 2,240 ÷ 70 = 32; 2,240 ÷ 320 = 7 — and 32 and 7 share no factor but 1, so no smaller number is. As a common denominator: multiply the top and bottom of x/70 by 32 and of y/320 by 7.
70 = 2 × 5 × 7
320 = 26 × 5
| Prime | 70 | 320 | Highest power |
|---|---|---|---|
| 2 | 2 | 26 | 26 |
| 5 | 5 | 5 | 5 |
| 7 | 7 | — | 7 |
— = power 0: the prime is not a factor of this number; the LCM takes it from the number that has it.
LCM = 26 × 5 × 7 = 2,240
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- 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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