HW 2.27 Numbering the Carbons

[Yoon Lee 2A]

2.27 asks to draw a structure of 2,2-dimethyl-3-pentanone. I was wondering why it is numbered as 2,2-dimethyl-3-pentanone instead of 4,4-dimethyl-3-pentanone since the functional group is given the priority (so pentanone should have a lesser number than the methyls)?

Thank you in advanced!

[Bryan Trieu 1F]

I think that it is because 2,2 gives the lowest carbon numbers for the situation because both are 3-pentanone. So 2<4.
Hope this helps.