Suppose that p is a prime number ≥ 3 and r1, r2...rp is a complete residue system of modulo p. Prove that r1+r2+...+rp is divisible by p.© BrainMass Inc. brainmass.com March 4, 2021, 6:36 pm ad1c9bdddf
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Since is a prime ...
It is proven that r1+r2+...+rp is divisible by p. The solution is detailed and well presented.