Here's the question you clicked on:
Ishaan94
Show that the sum\[\sum_{k=1}^n k! \neq m^2\]for any integer m, for \(n\geq4\).
I found the answer on here, http://math.stackexchange.com/questions/33863/how-to-prove-that-the-number-123-n-is-never-square
ohh lol..that was simple ! :D wish that had struck me earlier..