Question

What is the least common multiple of 4 and 12?

Answer 1

The Least common multiple of 4 and 12 is 12.

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Answer 2

The lcm (least common multiple) of 4 and 12 is 12.

Explanation:

Find the prime factorization of 4

4 = 2 × 2

Find the prime factorization of 12

12 = 2 × 2 × 3

Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the LCM:

LCM = 2 × 2 × 3

LCM = 12