whats the easiest way to find the lcm of three numbers?
Stacey Warren - Expert brainly.com
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If you give me three numbers I will tell you how I do it.
Do you know how to find prime factors?
6 = 2 * 3
18 = 2 * 3 * 3
12 = 2 * 2 * 3
Do you understand this so far?
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yeah like a factor tree?
Yes... now I circle any number that they all have in common - so put a big circle around one 2 in each of the three
Now put one big circle around one 3 in each of the three numbers.
The circled numbers count once ... what I mean is
you have 1 (2) and 1(3) because they were circled and then you have 1 (2) and 1(3) that are not circled so you have
2 * 3 (the circled ones) * 2 * 3 (the uncircled ones)