Review Prime Factorization and GCF

What is the prime factorization of 56?

• 1 x 56

• 6x8

• 2x2x7

• 2x2x2x7

What is the greatest common factor of 96 and 36

• 2

• 6

• 288

• 12

A prime number...

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

Which is the prime factorization of 12 ? 

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

A composite number ...

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

What is the GCF of 9 and 15?

• 1

• 3

• 6

• 8