The 5-digit number $52\,28\square$ is a multiple of 6.  Which digit is represented by $\square$?
Question:
The 5-digit number $52\,28\square$ is a multiple of 6.  Which digit is represented by $\square$?
Answer:
Let's think step by step.

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The 5-digit number $52\,28\square$ is a multiple of 6.  Which digit is represented by $\square$?
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