On Sums of Four Coprime Squares

Volume 61 / 2013

A. Schinzel Bulletin Polish Acad. Sci. Math. 61 (2013), 109-111 MSC: Primary 11E25. DOI: 10.4064/ba61-2-3


It is proved that all sufficiently large integers satisfying the necessary congruence conditions mod 24 are sums of four squares prime in pairs.


  • A. SchinzelInstitute of Mathematics
    Polish Academy of Sciences
    Śniadeckich 8
    00-956 Warszawa, Poland

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