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# Brocard's Problem. Is $$n!+1={m}^{2}$$?

Can you show that there exists an integer $$n$$ other than 4, 5 and 7 such that $$n!+1={m}^{2}$$. In other words, $$n! + 1$$ is a perfect square?

###### Note: this problem is also known as Brocard's Problem and it's still open in list of unsolved math problems.

Note by Arulx Z
1 year, 6 months ago