Hanimex 80-200mm Lense compatible with a Nikon d3100?

I've been given a free Hanimes 80-200mm lense its a K bayonet mount i was told it was compatible with a nikon d3100 i'm not sure what adapters i would have to buy?

K Mount lenses fit Pentax cameras. I rather doubt that there's an adaptor to fit K mounts to Nikon. If you did so there would not be full usage of auto functions. Never mind - Hanimex products are generally of poor quality. That lens is probably quite old.

Pentax K mount won't work directly on a Nikon camera you will need an adapter even then there are problems.

Nikon have the longest lens mount to sensor distance of any DSLR camera, the result is any other manufacturers lens won't focus on infinity unless you have a corrective lens in the adapter which kinda defeats the purpose.

Hanimex lenses are not noted for their image quality, in fact they were a pretty poor and cheap and are not really worth spending money on, there are many other Pentax K mount lenses (or Nikon for that matter) that will be loads better.