Quadratic Residue Checker

x² ≡ a (mod n)?

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About Quadratic Residue Checker

A quadratic residue checker determining if a ≡ x² (mod n) is solvable. Finds all square roots when they exist, lists all quadratic residues mod n, and computes the Legendre/Jacobi symbols. All calculations are client-side.

Quadratic Residue Checker Features

  • QR check
  • Square roots
  • QR list
  • NR list
  • Legendre symbol

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