Prime Factorization and Composite Numbers

These are the numbers with more than two factors.

• Composite Numbers       

• Factors

•   Multiples

• Prime Factors

Which of the following is composite number?

• A.   41                        

•                         B. 43                  

•                                      C. 47                  

• D.49

Write 18 as a product of its prime factors.

• 2 x2 x 3                 

•      2 x 3 x3            

•    2 x 2x 2x 3        

• 2 x 2 x3 x 3

A whole number greater than 1 that cannot be made by multiplying other whole numbers.

• Greatest common factor (GCF)

• Prime Factorization

• Prime Number

• Composite Number

A ​composite number has

(a)   ​ factors

• more than two

• exactly two

• only two

• composite

The number 11 is​ (a)   because it has ​ (b)  

• prime

• composite

• exactly 2 factors

• more than 2 factors

Find the prime factorization of 72

• 2³ x 3²

• 2 x 3² x 4

• 2⁴ x 3³

• 2² x 6²

The number 25 is ​ (a)   because it has ​ (b)  

• composite

• prime

• more than 2 factors

• exactly 2 factors

Which is the CORRECT prime factorization of 18?

• 2 x 9

• 3 x 6

• 2 x 3²

• 2⁹

Are each of these numbers prime or composite?

• prime

• 12

• prime

• 7

• composite

• 10

• composite

• 3

• composite

• 15