LCM for 80 and 245
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What's the Least Common Multiple (LCM) of 80 and 245?
Answer
LCM of 80 and 245 is
3,920
First common multiples: 3,920; 7,840; 11,760; …
3,920 is divisible by both: 3,920 ÷ 80 = 49; 3,920 ÷ 245 = 16 — and 49 and 16 share no factor but 1, so no smaller number is. As a common denominator: multiply the top and bottom of x/80 by 49 and of y/245 by 16.
80 = 24 × 5
245 = 5 × 72
| Prime | 80 | 245 | Highest power |
|---|---|---|---|
| 2 | 24 | — | 24 |
| 5 | 5 | 5 | 5 |
| 7 | — | 72 | 72 |
— = power 0: the prime is not a factor of this number; the LCM takes it from the number that has it.
LCM = 24 × 5 × 72 = 3,920
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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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