Prime, composite, prime factorization, lcm,gcf review

What are the first ten prime numbers?

• 0,1,2,3,5,7,9,11,13,15

• 2,3,5,7,11,13,17,19,23,

  29

• 0,1,2,3,7,11,13,17,19,21

• 2,4,6,8,10,12,14,16,18,

  20

What are the first ten composite numbers?

• 2,4,6,8,10,12,14,16,20,22

• 0,2,4,6,8,10,12,14,16,

  18

• 4,6,8,9,10,12,14,15,16,

  18

• 1,2,3,5,7,11,13,17,19,23

Match the following

• gcf of 12 and 6

• 9

• prime

• 2

• Prime Factorization of 12

• 0, 1

• neither

• 2 x 2 x 3

• composite

• 6

What is the prime factorization of 56?

• 1 x 56

• 6x8

• 2x2x7

• 2x2x2x7

What is the prime factorization of 51?

• It is already prime

• 3x17

• 2x25 +1

• 6x9

Match the following

• gcf of 12 & 20

• 1

• gcf of 15 & 7

• 30

• gcf of 12 & 48

• 4

• Lcm of 2,5,6

• 60

• LCM of 12 & 20

• 12

What is the greatest common factor of 96 and 36

• 2

• 6

• 288

• 12

What is the LCM of 96 & 36?

• 2

• 6

• 12

• 288

True or false

Zero and One are neither prime or composite

• true

• false

What is the prime factorization of 100 

• 2x2x5x5

• 25 x 2

• 5x5x25

• 2x2x5x10