Of course they've been trained on oct and hex. The question is would the results be largely valid if this was done on a human who had learnt how to perform bas

Of course they've been trained on oct and hex. The question is would the results be largely valid if this was done on a human who had learnt how to perform base 8, 9, 11 etc arithmetic instead ? I mean, they're clearly not trying to test the ability to derive base arithmetic from scratch.