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Congruence of squares is a concept in number theory that deals with whether two numbers can be expressed as squares mod some integer. Specifically, it investigates under what conditions a quadratic residue (a number that is congruent to a perfect square modulo \( n \)) can be expressed as the square of another number modulo \( n \).

Ancestors (5)

  1. Modular arithmetic
  2. Arithmetic
  3. Fields of mathematics
  4. Mathematics
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