what is the lcm of 18 and 12

the lcm of 18 and 12
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1 Answer

18 = 2      * 3 * 3  find the prime factors.

12 = 2 * 2 * 3       I aligned the common factors

        2       * 3 is common.

              2     * 3 is left over.  I brought them

                                      down.

LCM = 2 * 2 * 3 * 3 = 4 * 9 = 36

by Level 10 User (55.7k points)

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