Naming an alkane through the IUPAC system is pretty simple so all it is is (prefix for number of carbon) + ane For the first four in this homologous series you have Meth- 1 carbon Eth- 2 carbons Pro- 3 carbons But- 4 Carbons Onward you use the prefixes you know such as Pent, Hex, Hept, Oct, Non, Dec
So for an alkane with 3 Carbons it would be Propane, with 4 - Butane with 8- Octane etc.
