Naming BrCH2CH2CH2OH: Excluding Carbon # for OH Group

[Sunwoo Bae]

Homework Statement

Name BRCH2CH2CH2OH by the IUPAC system

Relevant Equations

none

I thought that the compound would be named 2-bromo-propan-1-ol, but the answer sheet says that it is 3-bromopropanol.
But don't you have to indicate the position of the OH group with carbon numbers?

My textbook says that CH3CH2CH2OH would be named 1-propanol. Here, it seems like the position of the OH group was indicated.

Then on what instances can the numbers for OH be excluded?

Thank you.

 

[chemisttree]

IUPAC always indicates the position of the alcohol. You are both wrong but not by much!
3-Bromo-propan-1-ol