The least common multiple is 6 because 2,3,and 6 all have 6 as one of their multiples.
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Use the methods you probably already learned, to find the least common multiple of 2 and 3. Then multiply this least common multiple by 1, by 2, by 3, etc., to get additional multiples.
What are three common multiples of 2 6 8
60 and its multiples
They are all multiples of 6
lcm(2, 3, 5) = 30 → 2 digit common multiples are 30, 60, 90.