[blibble]

> You probably do not have a child of 7 years old because they do not know at that age what is a prime number.

it's part of the curriculum for children of this age where I grew up (I did check)

> The way you are responding here shows quite a lot about how you are short sighted by instant-failing someone with a single question instead of trying to asses the whole person as much as you can. On you side, you are wasting opportunity to have a great person that could be a key player in your team by bringing other set of skill on the table.

it may also be the case that I have more in depth knowledge about the roles that I've interviewed candidates for

most recently: hiring people to work for quants

not instantly knowing that even numbers (other than 2) are not prime is a very strong signal