6.NS.4 GCF and LCM.

Presentation on theme: "6.NS.4 GCF and LCM."— Presentation transcript:

6.NS.4 GCF and LCM

Warm Up What is a prime number? Give the first 10 prime numbers.
What is a composite number? Give 3 examples. Is 1 a prime or a composite number?

It All Adds Up Work in table groups to complete the task provided. Discuss your method and apply a similar method to all 4 prizes. Good luck!

GCF Example: Find the GCF of 36 and 48:
Greatest Common Factor: the greatest number that is a common factor of each of two or more numbers Two Methods: List and Prime Factorization Example: Find the GCF of 36 and 48: List Method Prime Factorization Method 36: 1, 2, 3, 4, 6, 9, 12, 18, 36 48: 1, 2, 4, 6, 8, 12, 24, 48 GCF is 12 GCF is 2x2x3 = 12

GCF Practice Find the GCF using the method prescribed: 27 and 36
List Method: Prime Factorization Method: 27 and 36 2) 160 and 550 8, 64 and 96 4) 30 and 48 20 and 24 6) 125, 40 Answers 9 3.

Warm Up Create a new addition problem by factoring out the GCF.