Differences between private limited liability company and public limited liability company?

Differences between private limited liability company and public limited liability company?
Both private and public companies have limited liabilities- so it is not useful to state that as a difference. The difference between a PRIVATE company (Pty Ltd) and a public company (ltd) is that in a private company- the maximum number of people that can have shares in the company is 100 in which they have to be invited by the company. With PUBLIC companies, they are on the stock exchange market (In Australia the ASX) in which they have an unlimited number of shareholders and shares are issued via prospectus etc.