factor trees and index notation

Find the prime number

• 10
• 9
• 7
• 4

Tags

CCSS.4.OA.B.4

What is the prime factorization of 15?

• $3^3$

• $2^2\times5$

• 15

• 3x5

Use a factor tree to find prime factorization of 24.

• $2^2\times3$

• $2^3\times3$

• $2^2\times6$

• 2 x 3 x 4

Use a factor tree to find the prime factorization of 50.

• $2^2\times5^2$

• $5^2$ x 3 x 2

• 2 x $5^2$

• 2 x 25

Draw a factor tree for 36 on your white board. What is the correct prime factorization?

• $2^2\times3^2$

• $6^2$

• 2 x 3 x 6

a⁴ in expanded form is...

• a + a + a + a

• 4a

• a x a x a x a

• 4 + a

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

What factors do these numbers (18 and 27) have in common?

• 2

• 2 and 3

• 3 and 3

• 3

Which is the prime factorization of 12 ? 

• 2 x 6
• 2 + 2 + 2 + 2 + 2 + 2 
• 2² x 3
• 1 x 2² x 3