## Ishaan94 2 years ago Show that the sum$\sum_{k=1}^n k! \neq m^2$for any integer m, for $$n\geq4$$.

1. shubhamsrg

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2. Ishaan94

I found the answer on here, http://math.stackexchange.com/questions/33863/how-to-prove-that-the-number-123-n-is-never-square

3. shubhamsrg

ohh lol..that was simple ! :D wish that had struck me earlier..