Prime Factorization

Is 5, a prime or composite number? 

• prime

• composite

Tags

CCSS.4.OA.B.4

A prime number...

• has one factor.

• has more than 2 factors.

• has 100 factors.

• has exactly 2 factors: 1 and the itself.

Tags

CCSS.4.OA.B.4

 

One is...

• prime

• composite

• not prime or composite

• he loneliest number

Tags

CCSS.4.OA.B.4

Which of the following is NOT prime?

• 29

• 23

• 17

• 39

Tags

CCSS.4.OA.B.4

 

Is 12, a prime or composite number? 

• prime

• composite

Tags

CCSS.4.OA.B.4

Find the prime factorization for 80

• 4² ⋅ 5

• 2⁴ ⋅ 5

• 2 ⋅ 2 ⋅ 2

• 8 ⋅ 5 ⋅ 2

Tags

CCSS.6.EE.A.1

CCSS.6.EE.A.3

CCSS.6.EE.A.4

If the expanded form is 2⋅2⋅2⋅3⋅3⋅5⋅7 what would the exponential form be?

• 2⋅3⋅5⋅7

• 2³⋅3²⋅5⋅7

• 2²⋅3²⋅5⋅7

• 8⋅9⋅35

Tags

CCSS.6.EE.A.1

Jaselyn and Ky are working on the prime factorization of 63. Read their explanations and decide which student is correct.

• Jaselyn said the prime factorization of 63 is 7 x 9 because 7 times 9 is 63.

• Ky said the prime factorization of 63 is 3² x 7 because 3² times 7 equals 63 and the bases in his answer are all prime.

Tags

CCSS.6.EE.A.1

CCSS.6.EE.A.3

CCSS.6.EE.A.4

What number is never allowed on a factor tree by itself?

• 13

• 1

• 2

• 8675309

A composite number ...

• has more than 2 factors.

• has one factor.

• has at least 10 factors.

• is always a really big number.

Tags

CCSS.4.OA.B.4