Find the number of positive integers $n$ for which the graph of
\[y = \frac{(x + 3)(x - 7)^5}{(x - 1)(x - 7)^n}\]has a hole at $x = 7.$
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
Find the number of positive integers $n$ for which the graph of
\[y = \frac{(x + 3)(x - 7)^5}{(x - 1)(x - 7)^n}\]has a hole at $x = 7.$
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
5
Find the number of positive integers $n$ for which the graph of
\[y = \frac{(x + 3)(x - 7)^5}{(x - 1)(x - 7)^n}\]has a hole at $x = 7.$
train