MathDB

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Part of 1969 IMO Shortlist

Problems(1)

Infinte numbers not expressible as sum of three squares

Source:

10/4/2010
(SWE6)(SWE 6) Prove that there are infinitely many positive integers that cannot be expressed as the sum of squares of three positive integers.
quadraticsnumber theoryAdditive Number TheoryIMO ShortlistIMO Longlist