Solutions by everydaycalculation.com

The LCM of 18 and 30 is 90.

- Find the prime factorization of 18

18 = 2 × 3 × 3 - Find the prime factorization of 30

30 = 2 × 3 × 5 - Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the LCM:

LCM = 2 × 3 × 3 × 5 - LCM =
**90**

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Find least common multiple (LCM) of: 36 & 60 9 & 15 54 & 90 6 & 10 90 & 150 126 & 210 36 & 30 18 & 60 54 & 30 18 & 90 90 & 30 18 & 150 126 & 30 18 & 210

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