LCM for 100 and 225
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What's the Least Common Multiple (LCM) of 100 and 225?
Answer
LCM of 100 and 225 is
900
First common multiples: 900; 1,800; 2,700; …
900 is divisible by both: 900 ÷ 100 = 9, 900 ÷ 225 = 4 — and 9 and 4 share no factor but 1, so no smaller number is. As a common denominator: multiply the top and bottom of x/100 by 9 and of y/225 by 4.
100 = 22 × 52
225 = 32 × 52
| Prime | 100 | 225 | Highest power |
|---|---|---|---|
| 2 | 22 | — | 22 |
| 3 | — | 32 | 32 |
| 5 | 52 | 52 | 52 |
— = power 0: the prime is not a factor of this number; the LCM takes it from the number that has it.
LCM = 22 × 32 × 52 = 900
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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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