1. **Problem:** Evaluate $\log_4 64$.
2. **Formula:** $\log_b a = c$ means $b^c = a$.
3. **Step:** Express 64 as a power of 4.
Since $4^3 = 64$, we have $\log_4 64 = 3$.
4. **Answer:** $\boxed{3}$.
Log Base 4 Aedff4
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