Prime numebrs and factorization

Multiple Choice

A prime number...

• has one factor.
• has more than 2 factors.
• has 100 factors.
• has exactly 2 factors: 1 and the itself.

Multiple Choice

A composite number ...

• has more than 2 factors.
• has one factor.
• has at least 10 factors.
• is always a really big number.

Multiple Choice

One is... 

• prime
• composite
• not prime or composite
• the loneliest number that you'll ever know

Multiple Choice

Which of the following is NOT prime?

• 29
• 23
• 17
• 6

Multiple Choice

Is 5, a prime or composite number? 

• Prime
• Composite

Multiple Choice

2 x 2 x 2 is the prime factorization of...

• 6
• 12
• 22
• 8

Multiple Choice

Which is the prime factorization of 12 ? 

• 2 x 6
• 2 + 2 + 2 + 2 + 2 + 2 
• 2x2x3

• 1 x 2² x 3

Multiple Choice

Use a factor tree to find the prime factorization of 105

• 3x5x7

• 3x5x11

• 1x2x5x7

• 2x3x5x7

Multiple Choice

Complete the factor tree to find the prime factorization of 9.

• 9 = 3 x 3

• 9 = 9 x 1

• 9 = 9 x 9

Multiple Choice

Find the prime factorization of 30.

• 30 = 5 x 6

• 30 = 2 x 3 x 5

• 30 = 2 x 3 x 6

Multiple Select

• 56 = 7 x 2 x 2 x 2 x 2

• 56 = 7 x $$2^3$$  

• 56 = 7 x 2 x 2 x 2

• 56 = $$7\ \times\ 2^4$$  

Multiple Choice

• 42 = 2 x 3 x 7

• 42 = 2 x 3 x 6

• 42 = 2 x 3 x 5

Multiple Choice

Find the prime factorization of 38.

• 38 = 2 x 19

• 38 = 5 x 6 x 8

• 38 = 5 x 6 x 6