The muliples of 9 are: 9, 18, 27, 36, 45, ...
The multiples of 2 are: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26,...
So, the common multiples are 18, 36, 54,...
Therefore, the least common multiple is 18
Answer: 18
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