Factoring (Factor Tree)

A prime number...

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

Answer explanation

A composite number ...

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

Answer explanation

One is... 

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

What is a factor?

• Two numbers that create a quotient.

• Two numbers that create a product.

• Two numbers that create a sum.

• Two numbers that create a difference.

What number is never allowed in a factor tree? 

• 13 (it's bad luck!)
• 1 
• 8675309
• 2

Which is the prime factorization of 12 ? 

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

What is the prime factorization of 16 ? 

• 1 x 16
• 2²x 4
• 2⁴
• 2² + 2²

Use a factor tree to find the prime factorization of 72

• 2³ x 3²
• 2 x 3² x 4
• 2⁴ x 3³
  
• 2² x 6²
  

Use a factor tree to find the prime factorization of 105

• 3x5x7

• 3x5x11

• 1x2x5x7

• 2x3x5x7

What is the prime factorization of 40?

• 2 x 2 x 5

• 2³ x 5

• 5 x 8

• 4 x 10