Chapter 4: Number Theory

§ 4.2 GCF and LCM

Topics

• prime factorization
  `36=2^3*3^2`
• Fundamental Theorem of Arithmetic
• factor trees
  12 is a multiple of 3.
  
• Greatest Common Factor:
  The greatest of all of the factors common to a pair of numbers.
  The greatest common factor of 12 and 8 is 4.
  GCF(12,8) = 4
• GCD Methods
• Least Common Multiple:
  The least (smallest) of all of the multiples of a pair of numbers.
  The least common multiple of 12 and 9 is 24.
  LCM(12,8) = 24
• LCM Methods