Which of these is NOT a factor of 36?

• 6

• 2

• 8

• 12

Tags

CCSS.4.OA.B.4

Create a factor tree and find the prime factorization for 80

• 4² . 5

• 2⁴ . 5

• 8 . 5 . 2

• 2 . 2 . 2

One is

• not prime or composite

• composite

• the loneliest number that you'll ever use

• prime

Tags

CCSS.4.OA.B.4

A composite number

• has more than 2 factors

• has at least 10 factors

• has one factor

• is always a really big number

Tags

CCSS.4.OA.B.4

Which of the following are all prime numbers?

• 2, 4, 8, 16

• 2, 3, 6, 7, 9

• 2, 3, 5, 7

• 2. 3. 5. 7. 11

Tags

CCSS.4.OA.B.4

2 x 2 x 2 or 2³ is the prime factorization of

• 6

• 12

• 22

• 8

What number is never allowed in a factor tree?

• 8675309

• 1

• 13 (it is bad luck)

• 2

Tags

CCSS.6.EE.A.1

Which is a factor of 15?

• 4

• 6

• 2

• 3

Tags

CCSS.4.OA.B.4

Write 144 in prime factorization. You can use the ladder or factor tree.

• 2⁴ x 3³

• 2³ x 3³

• 2² x 3⁴

• 2⁴ x 3²