1. Objective- To identify prime and composite numbers.
Show all the possible arrays for the number 8.

2. Show all the possible arrays for the number 7.

3. Prime Number -
A number that has exactly two
factors, 1 and itself.
Composite Number -
Numbers that have more
than two factors.
There are eight prime numbers from 0 to 20.
List them.
Prime
Composite
Neither 2
, 3
, 5
, 7
, 11 4
, 6
, 8
, 9
, 10
, 12
, 1 13
, 17
, 19 14
, 15
, 16
, 18
, 20

4. List all the factors of the following numbers.
Write prime or composite. 12 28 17 1 12 1 28 1 17
Factor
Tower 2 6 2 14 3 4 4 7
Composite
Composite
Prime

5. List all the factors of the following numbers.
Write prime or composite. 16 23 31 1 16 1 23 1 31 2 8 4 4
Composite
Prime
Prime

6. List all the factors of the following numbers.
Write prime or composite. 22 34 43 1 22 1 34 1 43 2 11 2 17
Composite
Composite
Prime