can someone please explain the green marked part in this question where Greg explains that n square should have at least three 2s when n square is divided by 24 and how n = 2 to the power 2 so that n square = 2 to the power 4? Can someone explain the method or the concept for this?
My understanding: I think since n^2/2^3.3^1 when we prime factor 24, we have at least 3 choices for 2s so n^2 should at least be three 2s. When we take just n having two 2s won’t get the job done since n^2 should have at least three 2s so just n should have 2^2 which works. Is this understanding correct?