It seems people here are in a hurry to get a question closed as soon as it seems to deal with the same topic. I wonder how all 5 editors who voted to close Prove that every positive integer $n$ is a unique product of a square and a squarefree number missed the fact that I am asking for a proof by contradiction whereas the question that has been marked a duplicate of doesn't require proof by contradiction.
My question isn't answered yet and discussion on my question has stopped because it is closed. Is there a way I can reopen it?