Check to find the ‘power’ button on your own calculator. This is particularly useful when the index number is large. The square root of \({16}\) is \({4}\) (because \(4^2 = 4 \times 4 = 16\)).

For certain values we can achieve this without a calculator. However, more often or not, we will have to use one. If we were asked to find the cube root of 1,728, we may see this written as ...