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To find the LCM, you first need to identify the prime factors of the numbers. In this case:

2x3 = 2*x*x*x

4x9 = 2*2*x*x*x*x*x*x*x*x*x

The next step is to identify and discard any common factors. In this case, both numbers have three xs and one 2 shared. So we can discard these, and count only the remaining factors. These are: 2, 2, x, x, x, x, x, x, x, x and x

Multiply these together and you get 4x9

Thus the LCM of 2x3 and 4x9 is 4x9

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13y ago

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