Consider, for example:
From what I've learned in chemistry class, this molecule would be unofficially named 3-isopropylpentane.
What would the official IUPAC name for this molecule be? And what's the general way to name these types of molecules?
EDIT: For this specific molecule, the naming can be simplified by looking at the main carbon chain differently. For a more general case, consider heptane instead of pentane, in this case there's one chain that you're stuck with.