$4^4 = 256$

Would you like further details or have any questions?

Here are five related questions to expand on this concept:

1. What is $5^4$?
2. How do you calculate $4^5$?
3. What is the value of $3^4$?
4. Can you express $4^4$ as a product of prime factors?
5. How would you compute $4^{-4}$?

Tip: When raising a number to a power, you multiply the number by itself as many times as indicated by the exponent.