The answer is an imaginary number, because of the negative under the square root. The same number multiplied together will always be a positive number. For example, if you square negative one, the answer is positive one, because a negative times a negative is a positive. Because a square root undoes a square, there is no solution to the square root of a negative number. That's why your calculator could not compute this problem.
However, there is a way to solve these types of problems by using imaginary numbers. The answer is 13i, where i is the square root of negative one.
The square root of 169 = ± 13
Yes, it is the square root of (-169)*(-169) = 28,561
13 is the square root of 169.
The square root of 169 is 13
The square root of 169 is 13
169. 13 x 13 = 169. square root of 169 = 13.
The square root of the number 169, is 13 because when 13 is multiplied by itself, it results to 169.
-13 or +13 are both square root of 169, but we often use the positive square root, 13, as the principal square root.
If you mean 2 times the square root of 169 then it is 26
169
194
√ -169 = 13i