# Number Properties Puzzle -Critical Thinking 2

Let’s solve another critical challenge problem! This mathematical puzzle requires some kind of math to solve. Let’s see how you or your kid can handle it! Time to challenge your brain!

## Challenge:

$$1 = 5^1$$
$$2 = 5^2$$
$$3 = 5^3$$
$$4 = 5^4$$
$$5 = ?$$

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For this question, don’t try to use the pattern! The first equation says that 1 equals to $$5^1$$, which equals to 5.
$$1 = 5^1$$
$$2 = 5^2$$
$$3 = 5^3$$
$$4 = 5^4$$
$$5=1$$