Gcf and Factors

What is the GCF of 8 and 10?

• 1

• 3

• 4

• 2

Sara had 16 red flowers and 24 yellow flowers.  She wants to make bouquets with the same number of each color flower in each bouquet.  What is the greatest number of bouquets that she can make?

• 4

• 2

• 48

• 8

Which is NOT a factor of 24?

• 3

• 8

• 7

• 12

Which is NOT a factor of 15?

• 3

• 6

• 5

• 1

Using the greatest common factor, reduce the fraction fifteen-twentieths to its simplest form

• four-fifths

• fifteen-sixtieths

• three-fourths

• three-fifths

All EVEN numbers have a common factor of:

• 8

• 2

• 4

• 6

Gabby is baking cookies to put in baggies for a bake sale. She has made 63 chocolate chip cookies and 56 sugar cookies. She wants all the baggies to have the same number of cookies. What is the greatest number she can put in each?

• 8

• 9

• 7

• 6

List all the factors of 12

• 1, 2, 3, 4, 6, 12

• 1, 2, 4, 12

• 1, 12

• 1, 2, 3, 4, 5, 6, 12

Which of the following pairs of numbers has a GCF of 9?

• 6 and 9

• 18 and 45

• 18 and 36

• 36 and 72

A car dealer has 20 Toyota Camrys and 25 Honda Accords left on the parking lot. The dealer wants to arrange the cars in rows so that each row has the same number of vehicles and the same number of vehicles of each type. What is the greatest number of rows that can be formed?

• 4 rows

• 5 rows

• 10 rows

• 15 rows