My Erdős number is 6, which I found using the Collaboration Distance tool in the website of American Mathematical Society [link]. This is the genealogy.
Nicholas Mario Wardhana co-authored with Peter Loh Kok Keong.
Peter Loh Kok Keong co-authored with Wen-Jing Hsu.
Wen-Jing Hsu co-authored with Moon Jung Chung.
Moon Jung Chung co-authored with Balasubramanian Ravikumar.
Balasubramanian Ravikumar co-authored with Jeffrey O. Shallit.
Jeffrey O. Shallit co-authored with Paul Erdős.
Further info on Erdős number: [Wikipedia]