What is the simplest radical form for sqrt(145)?

2 Answers
Mar 28, 2017

sqrt145

Explanation:

There is no simple form for this.

Let's try using the factors of 145

sqrt145=sqrt145*sqrt1

sqrt145=sqrt29*sqrt5

This cannot be broken into any simpler forms so there is no simple from for sqrt145

Mar 28, 2017

sqrt(145)

Explanation:

The prime factorisation of 145 is:

145 = 5*29

Since this has no square factors, there is no simpler radical form than sqrt(145).

Note however that 145 = 12^2+1 is of the form n^2+1

As a result, its square root has a very simple form as a continued fraction:

sqrt(145) = [12;bar(24)] = 12+1/(24+1/(24+1/(24+1/(24+1/(24+...)))))