(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

If 5 divides m^2 + n^2 + p^2 , prove that 5 divides wither m, or n, or p.

2. Relevant equations

m,n,p are all integers

3. The attempt at a solution

I am having some major problems with this chapter on modular arithmetic. any help is much appreciated!!!

modular arithmetic is not needed to solve the problem, but may be helpful.

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# Homework Help: Complicated divisibility problem

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