\(f(k) = \sum_{r=1}^{n} r^k\). Find an integer \(x\) that solves the equation \(f(x) = \bigl(f(1)\bigr)^2\).

[SOLVED]

1 comment

Prunthaban Kanthakumar solved this puzzle:

\(3\) from what I learnt in school.

Credit

This is an original puzzle from cotpi.

Further reading

The following is a list of resources on related topics:

Post a comment

RSS