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Omni-MATH / Let f(x)=x²+x+1. Determine, with proof, all positive integers n such that f(k) divides f(n) whenever k is a positive divisor of n. · Discussion

Discussing Let f(x)=x²+x+1. Determine, with proof, all positive integers n such that f(k) divides f(n) whenever k is a positive divisor of n. · Omni-MATH

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