Unit 5 · Number Theory

Chapter 5.4

Remainders and Cycles

Enormous powers and processes repeated a hundred times become small once you notice that they repeat.

free · lesson 26 of 42

By the end

  1. 01Compute with remainders using congruences
  2. 02Find the cycle of a last digit or a repeated process and locate a far-off term

In unit 5

  1. 5.1Factor Into Primes First
  2. 5.2Divisibility, GCD, and LCM
  3. 5.3Odd and Even
  4. 5.4Remainders and Cycles
  5. 5.5Digits, Bases, and Decimals
  6. 5.6Equations in Whole Numbers
  7. 5.7Whole Numbers Are Information
  8. 5.8Which Idea Opens It? Number Theory
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