Question

how do you use an exponent to represent a number such as 16?

Answer 1

4 we use and exponent 4 represent in numbers such as 16

Answer 2

We can write 16 as 2⁴ or 4²
Where exponents or power are 4 and 2
Here we can also write
2*2*2*2 =2⁴=16
OR
4*4=4²=16