Solutions by everydaycalculation.com

The LCM of 28 and 63 is 252.

- Find the prime factorization of 28

28 = 2 × 2 × 7 - Find the prime factorization of 63

63 = 3 × 3 × 7 - 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 × 7 - LCM =
**252**

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Find least common multiple (LCM) of: 56 & 126 84 & 189 140 & 315 196 & 441 4 & 9 56 & 63 28 & 126 84 & 63 28 & 189 140 & 63 28 & 315 196 & 63 28 & 441

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