Prime Factorization, GCF, & LCM Review

Prime Factorization

100

Find the prime factorization of 16

16 = 2⁴

200

Find the prime factorization of 25

25 = 5²

300

Find the prime factorization of 54

54 = 2 x 3³

400

Find the prime factorization of 77

77 = 7 x 11

500

Find the prime factorization of 84

84 = 2² x 3 x 7

GCF listing factors

100

Find the GCF by listing factors

6, 15

GCF of 6 and 15 is 3

200

Find the GCF by listing factors

27, 45

The GCF of 27 and 45 is 9

300

Find the GCF by listing factors

30, 48

The GCF of 30 and 48 is 6

400

Find the GCF by listing factors

28, 48, 64

The GCF of 28, 48, and 64 is 4

500

Find the GCF by listing factors

42, 70, 84

The GCF of 42, 70, and 84 is 14

GCF prime factorization

100

Find the GCF by the prime factorizations

20, 45

The GCF of 20 and 45 is 5

200

Find the GCF by the prime factorization

24, 90

The GCF of 24 and 90 is 6

300

Find the GCF by the prime factorization

52, 68

The GCF of 52 and 68 is 4

400

Find the GCF by the prime factorization

32, 56, 96

The GCF of 32, 56, and 96 is 8

500

Find the GCF by the prime factorization

45, 75, 120

The GCF of 45, 75, and 120 is 15

LCM listing multiples

100

Find the LCM

4, 6

The LCM of 4 and 6 is 12

200

Find the LCM 

4, 14

The LCM of 4 and 14 is 28

300

Find the LCM 

6, 20

The LCM of 6 and 20 is 60

400

Find the LCM 

15, 20, 25

The LCM is 300

500

Find the LCM 

12, 28, 54

756

Bonus!

100

What is a prime number?

Number that is divisible only by one and itself 

200

Which layer of the Earth is made mostly of granite and basalt?

The crust!

300

What is one of Ms. Hill’s  dogs' name?

Renny or Josie

400

What is Santa's original name?

Saint Nicholas

500

Name all of Santa's Reindeer

Dasher Dancer Prancer Vixen Comet Cupid Blitzen Donner and Rudolph