8k+7 nu e suma de trei patrate perfecte

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Iulian Cimpean
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8k+7 nu e suma de trei patrate perfecte

Post by Iulian Cimpean »

Demonstrati ca un numar intreg de forma 8k+7 nu se poate scrie ca suma de 3 patrate perfecte.
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Laurian Filip
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Post by Laurian Filip »

un patrat perfect e de forma \( \{8k,8k+1,8k+4\} \) si oricum ai aduna 3 astfel de numere nu se poate ajunge la 8k+7
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