This chapter is dedicated to *quadratic residues*. The concept has many applications we will learn about later, including cryptography and the factorization of large numbers.

| | | | created: 2019-05-12 08:44:46 | modified: 2019-05-12 08:46:07 | by: *bookofproofs* | references: [1272]

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[1272] **Landau, Edmund**: “Vorlesungen über Zahlentheorie, Aus der Elementaren Zahlentheorie”, S. Hirzel, Leipzig, 1927