Arrays and factors

In this lesson, we will learn:

• Factors, Products, Multiplication Statements
• Writing a product for a given array
• Drawing arrays to find factors
• Using an array to describe the distributive property of multiplication

Notes:

Factors

• Numbers we can multiply to get another number
• Numbers we can multiply to get another number

• two numbers that we multiply together to get a certain product

Ex. 3 x 4 = 12 

3 and 4 are both factors of 12 and 3 and 4 are a factor pair

$\quad$ 2 x 6 = 12 

2 and 6 are also factors of 12, 2 and 6 are a factor pair

BUT be careful! 2 and 4 are not a factor pair of 12 even though they are both factors of 12 because:

2 x 4 DOES NOT EQUAL 12

Tips for finding factors

• Every number has 1 as a factor
• Every number has itself as a factor 

Product

• The term product in this section is used for both an expression involving multiplication and the evaluation of that expression 

$\qquad \qquad$ Ex. The product of 2 and 5 is: 2 x 5 and 10

Arrays

• An array is a diagram which represents a product 
• You can draw an array with dots or with squares 

Writing a product for a given array
The product is created by writing the number of rows times the number of columns
The product for the above array would be 2 x 3 or 6