Unit Review: Factors, multiples & primes

H.1Write yes or no.

1. 1
   Is 2 a factor of 32? 
2. 2
   Is 6 a factor of 60? 
3. 3
   Is 9 a factor of 18? 
4. 4
   Is 5 a factor of 55? 

H.2List the factors from least to greatest.

1. 5
   List all the factors of 49.
2. 6
   List all the factors of 8.
3. 7
   List all the factors of 27.
4. 8
   List all the factors of 60.

H.3List all the factor pairs.

1. 9
   List all the factor pairs of 27.
2. 10
   List all the factor pairs of 46.
3. 11
   List all the factor pairs of 33.
4. 12
   List all the factor pairs of 28.

H.4List the multiples in order.

1. 13
   List the first five multiples of 11.
2. 14
   List the first five multiples of 6.
3. 15
   List the first five multiples of 9.
4. 16
   List the first five multiples of 3.

H.5Write prime or composite.

1. 17
   Is 84 prime or composite?
2. 18
   Is 90 prime or composite?
3. 19
   Is 93 prime or composite?
4. 20
   Is 2 prime or composite?

H.6Answer each question.

1. 21
   List all the factor pairs of 62.
2. 22
   List all the factor pairs of 70.

H.6Answer each question. (continued)

1. 23
   List all the factor pairs of 32.
2. 24
   List all the factor pairs of 26.

H.1Is It a Factor?

1. 1yes
2. 2yes
3. 3yes
4. 4yes

H.2List the Factors

1. 51, 7, 49
2. 61, 2, 4, 8
3. 71, 3, 9, 27
4. 81, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60

H.3Factor Pairs

1. 9$1\times 27$, $3\times 9$
2. 10$1\times 46$, $2\times 23$
3. 11$1\times 33$, $3\times 11$
4. 12$1\times 28$, $2\times 14$, $4\times 7$

H.4List Multiples

1. 1311, 22, 33, 44, 55
2. 146, 12, 18, 24, 30
3. 159, 18, 27, 36, 45
4. 163, 6, 9, 12, 15

H.5Prime or Composite

1. 17composite
2. 18composite
3. 19composite
4. 20prime

H.6Factor Pairs & GCF

1. 21$1\times 62$, $2\times 31$
2. 22$1\times 70$, $2\times 35$, $5\times 14$, $7\times 10$
3. 23$1\times 32$, $2\times 16$, $4\times 8$
4. 24$1\times 26$, $2\times 13$