Number Theory
Explore the powers of divisibility, modular arithmetic, and infinity.
75 Lessons
Level 1
Level 2
Level 3
Level 4
Level 5
Level 6
Level 7
Level 8
Level 9
Level 10
Level 11
Course description
This course starts at the very beginning — covering all of the essential tools and concepts in number theory, and then applying them to computational art, cryptography (code-breaking), challenging logic puzzles, understanding infinity, and more!
Topics covered
- Divisibility Shortcuts
- Exploring Infinity
- Factor Trees
- Fermat's Little Theorem
- Greatest Common Divisor
- Least Common Multiple
- Modular Arithmetic
- Modular Congruence
- Modular Inverses
- Prime Factorization
- The 100 Doors Puzzle
- Totients
Prerequisites and next steps
A basic understanding of exponents and multiplication is all you need!