1. Greatest Common Factor
GCF

2. Video
factors-multiples/pre-algebra-greatest-common-divisor/v/greatest- common-divisor

3. Example 1
Rebecca has 20 ping pong balls and 16 table tennis paddles. She wants to sell packages of ping pong balls and paddles  bundled together. What is the greatest number of packages  she can sell with no leftover ping pong balls or paddles?

4. Example 1
Ming has 15 quarters, 30 dimes, and 48 nickels.   He wants  to group t he money so that each group has the same  number of each coin.   W hat is the greatest number of  groups he can make?

5. Vocabulary
Factor ­ a number that is multiplied by another to yield a product
Greatest common factor ­ The greatest number that is a factor of two or more numbers (FACTORS: few and fast)
Find The GCF of 60 and 75 60 75

7. Assignment:
Lesson 4 Greatest Common Factor Worksheet