GCF and Division

What is the GCF of 8 and 24?

• 1

• 24

• 8

• 4

What is the Greatest Common Factor of 23 and 78?

• 2

• 23

• 1

• 14

What is the Greatest Common Factor of 35 and 49

• 5

• 7

• 1

• 17

There are 48 girls and 64 boys. 
The choir teacher plans to arrange the students in equal rows.
Only girls or boys will be in each row (no mixing of girls and boys in the same row). What is the greatest number of students that could be in each row?

• 8

• 6

• 16

• 12

The Greatest Common Factor of 16 and 40 is ​ (a)  

• 8

• 4

• 5

• 2

• 16

• 32

• 3

• 11

What is the greatest common factor (GCF) of 18 and 30? (Just type the number)

Mathematical Equivalence

ON

Match the following GCF to the Expression

• 3

• 6x-9

• 7

• 28x-49

• 12

• 6x-18

• 4

• 12x-24

• 6

• 4x-4

Match the following GCF to the Expression

• 7

• 8x-72

• 8

• 9x+81

• 2

• 5x-5

• 9

• 4x-2

• 5

• 21x-28

GCF 24 and 36

• 8

• 6

• 12

• 4

What is the greatest common factor of the numbers 30 and 25?

Mathematical Equivalence

ON