Arrays and factors
Topic Notes
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
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
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
![Representing Numbers: Tally Marks](
https://dmn92m25mtw4z.cloudfront.net/img_set/math5-5-1-x-1/v1/math5-5-1-x-1-803w.png)
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