GCF

Find the GCF of 64 and 144

• 8
• 6
• 16
• 2

What is the GCF of 18 and 24?

• 3
• 6
• 8
• 9

What is the GCF of 4 and 12?

• 3
• 1
• 6
• 4

What is the greatest factor of 28 and 49?

• 1
• 2
• 7
• 12

What is the GCF of 20 and 30?

• 5
• 2
• 10
• 20

Jane has 18 juice boxes, 24 bags of peanuts and 36 apples.  She wants to make snack bags with the same number of each thing in each bag.  What is the greatest number of snack bags Jane can make.

• 4
• 6
• 8
• 10

Peter has 18 oranges, 27 pears and 12 bananas. He wants to make fruit baskets with the same number of each fruit in each basket. How many PEARS will be in the greatest number of fruit baskets?

• 7
• 8
• 9
• 10

GCF stands for...

• great calculator festival
• giant circumference fact
• grouped calculation finder
• greatest common factor

What number is the only even prime number?

• 0
• 2
• 1
• 3

Prime numbers have....

• more than 2 factors
• exactly 2 factors, one and itself.