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KöMaL problem A, 2026

Number theory Difficulty 6.0 National Olympiad Prove it Hungary

Prove that for any integers k>10k>10 and n>k4n>k^4, among the integers (n+12)({n+1^2}), (n+22)({n+2^2}), (n+32)({n+3^2}), …\ldots, (n+k2)({n+k^2}), there is at least one that has a prime divisor greater than kk.

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