Number Theory: PrimesCovers the definition of primes, the Fundamental Theorem of Arithmetic, and Euclid's Theorem.
Chinese Remainders & RSAExplores the Chinese Remainders Theorem, RSA public-key cryptosystem, bijective properties, and key generation for encryption and decryption.
Möbius inversion formulaCovers the Möbius inversion formula and its proof, including the change of variables in summation.