I was curious about my Erdös number and it turns out I’ve got 3 different paths of length 5 to Paul Erdös: Mattijs Ghijsen – Mannes Poel – Willem-Paul de Roever – Johann Andreas Makowsky – Saharon Shelah – Paul Erdös Mattijs Ghijsen – Rieks op den Akker – Borivoj Melichar – Jan Holub – [...]