The function $f(n)$ satisfies $f(1) = 1$ and $f(2n + 1) = f(n) + 1$ for $n \ge 0.$  Find $f(15).$
Question:
The function $f(n)$ satisfies $f(1) = 1$ and $f(2n + 1) = f(n) + 1$ for $n \ge 0.$  Find $f(15).$
Answer:
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The function $f(n)$ satisfies $f(1) = 1$ and $f(2n + 1) = f(n) + 1$ for $n \ge 0.$  Find $f(15).$
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