Factors and Multiples Quiz

What is the abbreviation for the greatest common factor?

• LCF

• GCM

• LCM

• GCF

Which of the following is a prime factor of 12?

• 3

• 6

• 8

• 4

What is the GCF of 15 and 66?

• 5

• 3

• 11

• 6

How many twos are in the prime factorization of 32?

• 6

• 3

• 4

• 5

What is the GCF of 10, 15, and 20?

• 2

• 3

• 5

• 10

What is the GCF of 32 and 48?

• 8

• 12

• 24

• 16

If Lena earned $49, $42, and $21 on different days, what is the most she could have charged per bracelet?

• $3

• $5

• $7

• $9

What is the GCF of 27 and 36?

• 9

• 18

• 6

• 12

How many groups can be formed with 14 boys and 21 girls if no one is left out?

• 7

• 9

• 5

• 3

Which number is a common factor of both 14 and 21?

• 7

• 5

• 3

• 2