The numbers represented by nn, where n is any whole number, are known as perfect powers. More specifically, they are perfect squares when n is a positive integer greater than 1, like 1, 4, 9, 16, and so on.
When you raise a whole number to itself, you obtain a unique result for each n. For example, if n = 2, then nn = 2^2 = 4; if n = 3, then nn = 3^3 = 27. These numbers can grow very large very quickly, especially when n is increased.
In mathematical terms, these numbers aren’t just regular whole numbers, they fall into a special category due to their exponential nature.