Hexa Scholar

Number theory

Divisibility, modular arithmetic, primes and the number theory behind RSA encryption.

7 planned

No page in this subject is open yet. The planned list below shows what is coming, in learning order.

Planned

In learning order. These are not pages yet.

  1. The Euclidean algorithm as cutting squaresIntro
  2. How primes thin out: the prime number theoremAdvanced undergrad
  3. Modular arithmetic as clock arithmeticIntro
  4. Bézout's identity and modular inversesIntro
  5. Fermat's little theoremIntro
  6. Why a linear congruential generator repeatsIntro
  7. How RSA encryption worksIntro