Factors and multiples
Understanding and finding factors and multiples. After these videos, you'll be ready for fractions.

Subtopics

  1. Divisibility tests Divisibility tests
  2. Divisibility and factors Divisibility and factors
  3. Prime numbers Prime numbers
  4. Prime factorization Prime factorization
  5. Least common multiple Least common multiple
  6. Greatest common divisor Greatest common divisor