4
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
If $4^6=8^n$, what is $n$?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
4
If $4^6=8^n$, what is $n$?
train