Solutions by everydaycalculation.com

The LCM of 4 and 105 is 420.

- Find the prime factorization of 4

4 = 2 × 2 - Find the prime factorization of 105

105 = 3 × 5 × 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 × 5 × 7 - LCM =
**420**

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Find least common multiple (LCM) of: 8 & 210 12 & 315 20 & 525 28 & 735 8 & 105 4 & 210 12 & 105 4 & 315 20 & 105 4 & 525 28 & 105 4 & 735

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