Question

Is square root of 16 a natural number or an integer?

Answer 1

Square root of 16 is +4 or -4. Since -4 is not a natural number, the square root can be described as an integer.

Answer 2

bp gives a great answer.

I sometimes forget that the words "square root" do not pick out the principle square root.

I would have answered for `sqrt16 =4` without thinking about the wording of the question.