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

Prove that if a prime number is a sum of three squares of different primes, then one of the primes must be equal to 3.

2. Relevant equations

3. The attempt at a solution

I really have no idea where to start this one.

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# Homework Help: Sum of 3 squares

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