I asked whether 0 was odd or even, and the teacher said it was even. I thought: we only study whether multiples and factors 0 are odd or even in the range of natural numbers (except 0)

I asked whether 0 was odd or even, and the teacher said it was even. I thought: we only study whether multiples and factors 0 are odd or even in the range of natural numbers (except 0)

even numbers