Two positive integers each have a units digit of 2 when expressed in base 4.  Find the units digit of their product when expressed in base 4.
Question:
Two positive integers each have a units digit of 2 when expressed in base 4.  Find the units digit of their product when expressed in base 4.
Answer:
Let's think step by step.

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Two positive integers each have a units digit of 2 when expressed in base 4.  Find the units digit of their product when expressed in base 4.
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