Subjective Type

What is the least common multiple of 18 and 24?

Solution

$$18 = 2 \times 3 \times 3$$
$$24 = 2 \times 2 \times 2 \times 3$$
The least common multiple is the product of all the primes in the diagram : $$3 \times 2 \times 3 \times 2 \times 2 = 72$$

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