Solutions by everydaycalculation.com

The LCM of 12 and 45 is 180.

- Find the prime factorization of 12

12 = 2 × 2 × 3 - Find the prime factorization of 45

45 = 3 × 3 × 5 - Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the LCM:

LCM = 2 × 2 × 3 × 3 × 5 - LCM =
**180**

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Find least common multiple (LCM) of: 24 & 90 36 & 135 4 & 15 60 & 225 84 & 315 24 & 45 12 & 90 36 & 45 12 & 135 60 & 45 12 & 225 84 & 45 12 & 315

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