How does a farm get classed as a factory farm?

My response, usually by being profitable. Factory farms are a misnomer used by those not in agriculture and who really have no idea how to produce the amount of foodstuffs needed to feed Britain, Canada, the US, Europe, much less the rest of the world.

Treating animals inhumanely, as a product. The majority of cheaper meat sold in this country is factory-farmed, but I don't know how many factory farms there are in the UK.

A factory farm is more properly known as a confined feeding operation. So any farm that raises animals in high density in barns or feed lots and generally the animals are confined to cages or crates and are raised on concrete flooring. http://en.wikipedia.org/wiki/Factory_farming I have no idea how many are in the UK, likely hundreds, the US has tens of thousands of them.

You have to ask yourself what a factory is. A factory is anywhere raw materials are brought together to produce a product. Any farm with a barn could be considered a "factory farm". I'll go with Texas R on this one.