distributive property for product of maxterms

Question

I am unsure how to use the Distributive property on the following function:

F = B'D + A'D + BD

I understand that F = xy + x'z would become (xy + x')(xy + z) but I'm not sure how to do this with three terms with two variables.

Also another small question: I was wondering how to know what number a minterm is without having to consult (or memorise) the table of minterms.

For example how can I tell that xy'z' is m4?