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LCM = product/HCF; the HCF of 27 and 45 is 9 so LCM is 27 x 45/9 ie 135.

LCM is the smallest multiple of 2 numbers and can be found by factoring both numbers and multiplying the prime factors having the highest powers.

Prime factors of 27 are 33

Prime factors of 45 are 32 x 5

LCM of 27 and 45 is 33x 5 = 135

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Q: How do you get the least common multiple of 27 and 45?
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