GCF, LCM, Factor Trees

What is the missing factor?

• 1

• 2

• 5

• 8

Tags

CCSS.4.OA.B.4

What are the missing factors?

• 2 and 3

• 3 and 6

• 3 and 3

• 1 and 9

Tags

CCSS.4.OA.B.4

List all the factors of 29.

• 29 does not have any factors.

• 1, 29

• 29

Tags

CCSS.4.OA.B.4

A prime number

• has one factor

• has more than 2 factors

• has exactly 2 factors: 1 and the number itself

Tags

CCSS.4.OA.B.4

is 3 prime number or composite number?

• prime

• composite

Tags

CCSS.4.OA.B.4

Use a factor tree to find the prime factorisation of 168

Find the prime factorization of 18

• 2 • 9

• 2² • 3

• 2 • 3²

• 3 • 6

Find the prime factorization of 60

• 5 • 12

• 2 • 3² • 5

• 2² • 3 • 5

• 2⁷

Tags

CCSS.6.EE.A.1

CCSS.6.EE.A.4

Find the prime factorization of 30

• 2² • 5 • 7

• 2 • 3²

• 2 • 3 • 7

• 2 • 3 • 5

Find the prime factorization of 81

• 2² • 7

• 2³ • 5 • 7

• 4³

• 3⁴

Tags

CCSS.6.EE.A.1