1 Factors & Multiples Lesson 1 - Factors & GCF I can list factors of a numberI can find the greatest common factor of two whole numbers.Warm Up:What is a factor?
2 Finding FactorsMake aA factor rainbow is a way of showing factor pairings. (two whole numbers whose product is that factor)What number is each rainbow a factor for?Factor
3 Greatest Common Factor Example: Find the GCF of 24 and 36. Steps: 1) Make a factor rainbow for each number 2) Circle the GREATEST number that they have in common, that is your GCF.
4 Find the GCF for each pair of numbers. 20: 36: 15: 60: 72: 56:
5 Lesson 2 – Prime Factorization I can make a factor tree to show prime factorization.Warm UpWhat is a prime number? Composite?Factor Tree Notes
6 Lesson 3 –Multiples. I can list the multiples of a whole number Lesson 3 –Multiples * I can list the multiples of a whole number. * I can find the least common multiple of two whole numbers.Warm Up - What is a multiple? (P. 145)
7 LCMExample: Find the least common multiple of 6 and 9. Steps: 1) List the multiples of each number. Multiples of 6: 6, 12, 18, 24, 30, 36……. Multiples of 9: 9, 18, 27, 36…………….. 2) Circle the smallest number that they have in common. 18, that number is the least common multiple.
8 Practice! LCM & GCF Cheat Sheet GCF: Factor Rainbow Prime Factorization: Factor TreeLCM: List multiples