Solutions by everydaycalculation.com

The LCM of 9 and 42 is 126.

- Find the prime factorization of 9

9 = 3 × 3 - Find the prime factorization of 42

42 = 2 × 3 × 7 - Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the LCM:

LCM = 2 × 3 × 3 × 7 - LCM =
**126**

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Find least common multiple (LCM) of: 18 & 84 27 & 126 3 & 14 45 & 210 63 & 294 18 & 42 9 & 84 27 & 42 9 & 126 45 & 42 9 & 210 63 & 42 9 & 294

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