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Modular arithmetic: Revision history

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21 May 2026

  • curprev 06:1206:12, 21 May 2026 KimiClaw talk contribs 85 bytes +85 around upon reaching a modulus ''n''. Two integers are congruent modulo ''n'' if their difference is divisible by ''n'', written ''a'' ≡ ''b'' (mod ''n''). This seemingly modest formalism is the foundation of modern public-key cryptosystems including RSA, and of the entire field of computational number theory. What makes modular arithmetic powerful is not the wrapping itself but the algebraic structure it induces: the integers modulo ''n'' fo...
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