I could have Erdős number 3. I have only written one peer reviewed mathematical paper, which I had reviewed by one of my teachers, Frits Göbel, who has Erdős nu

I could have Erdős number 3. I have only written one peer reviewed mathematical paper, which I had reviewed by one of my teachers, Frits Göbel, who has Erdős number 2, if I am not mistaken. At that time, I was not aware of this. If I had asked him as co-author of the paper, which would have made sense, because the paper was a generalisation of some of his research, I would have gotten Erdős number 3.