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

2 Answers
May 19, 2015

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

May 19, 2015

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.