Difference between revisions of "1999 IMO Problems/Problem 4"

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{{IMO box|year=1999|num-b=3|num-a=5}}

Latest revision as of 22:56, 18 November 2023

Problem

Determine all pairs $(n,p)$ of positive integers such that

$p$ is a prime, $n$ not exceeded $2p$, and $(p-1)^{n}+1$ is divisible by $n^{p-1}$

Solution

This problem needs a solution. If you have a solution for it, please help us out by adding it.

See Also

1999 IMO (Problems) • Resources
Preceded by
Problem 3
1 2 3 4 5 6 Followed by
Problem 5
All IMO Problems and Solutions