Solutions by everydaycalculation.com

The LCM of 63 and 15 is 315.

- Find the prime factorization of 63

63 = 3 × 3 × 7 - Find the prime factorization of 15

15 = 3 × 5 - Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the LCM:

LCM = 3 × 3 × 5 × 7 - LCM =
**315**

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Find least common multiple (LCM) of: 126 & 30 189 & 45 21 & 5 315 & 75 441 & 105 126 & 15 63 & 30 189 & 15 63 & 45 315 & 15 63 & 75 441 & 15 63 & 105

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