Legendre Symbol Calculator

(a/p) = a^((p−1)/2) mod p

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About Legendre Symbol Calculator

A Legendre symbol calculator computing (a/p) for prime p: 1 if a is a quadratic residue mod p, −1 if not, 0 if p|a. Uses Euler's criterion a^((p−1)/2) mod p. Shows computation steps. All calculations are client-side.

Legendre Symbol Calculator Features

  • (a/p)
  • Euler criterion
  • QR list
  • Reciprocity
  • Table
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