"Is considered" by whom? Or just your opinion? As others have commented I think that the language that you've used here - "very limited quality", "little bette

"Is considered" by whom? Or just your opinion? As others have commented I think that the language that you've used here - "very limited quality", "little better than solving quirky problems" - to describe the work Erdős did is very unfair. He may not have been Euler but then Euler was pretty much unique.