Uploaded September 2020 | Updated September 2026, 1 week ago

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Intro to quadratic residues: youtu.be/M6gDsFhQugM

The Legendre symbol is a useful notation for describing whether a number is a quadratic residue mod p. Here we explain what the Legendre symbol is and do a practice example with quadratic residues mod 5.

Quadratic Residues playlist: youtube.com/playlist?list=PLug5ZIRrShJGJieICD2KnqU9cRioaEBjB

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Music: OcularNebula - The Lopez