Factor Facts
What is the first factor pair that you can always find, and how is it the easiest one to find?
The first pair you should always write down is 1 x (the number) = the given number ALWAYS.
Is the number 45 a multiple of 5?
Yes it is.
Are multiples never-ending? Why?
Yes they are. They can always go higher.
Using a T-chart, find all the factors for the number:18.
Factors of 18: 1, 2, 3, 6, 9 and 18.
Using a factor rainbow, find the factors of 10.
Factors of 10 are 1, 2, 5, and 10.
True or false? Factoring is the reverse of multiplication?
True! Just like division, Factoring is finding the puzzle pieces to the big picture of the multiple.
Yes! 81 is a multiple of 9.
9 x 9 = 81
What is a factor pair? Explain, and provide an example.
A factor pair is a pair of numbers that you would multiply together to make a given product.
Using a T-chart, find all the factors for the number:24.
Factors of 24: 1, 2, 3, 4, 6, 8, 12 and 24.
Using a factor rainbow, find the factors of 55.
Factors of 55 are 1, 5, 11, and 55.
Are factors always whole numbers? Explain what a whole number is.
What is the least common multiple of 6 and 8?
The LCM of 6 and 8 is 24.
Can one of the factors of a given number be larger than the number itself? Why?
No, it cannot be larger than the given number because a factor is always lower or the same for the number we're trying to find the factor for.
Using a T-chart, find the factors of 38.
Factors of 38: 1, 2, 19 and 38.
Using a factor rainbow, find the factors of 45.
Factors of the number 45: 1, 3, 5, 9, 15 and 45.
Is 48 divisible by 2, 3, and 4?
Yes. 2, 3, and 4 are all factors of the number 48.
Identify a number that has a factor of 5 and a factor of 9 paired together. What would the multiple be?
5 x 9 = 45
What is the definition of "lowest common multiple"?
It is the lowest matching multiple between two different times tables.
Using a T-chart, find the factors of 46.
Factors of 46: 1, 2, 23, 46 are the factors of 46.
Use a factor rainbow to find the factors of 50.
Factors of 50: 1, 2, 5, 10, 25 and 50.
Write down all the factors for 30.
1, 2, 3, 5, 6, 10, 15, 30
or
1 and 30; 2 and 15; 3 and 10; 5 and 6
What are the missing multiples?
7, 14, 21, 28, ____, ____, ____, 56, ____, 70, 77, 84.
7, 14, 21, 28, _35_, _42_, _49_, 56, _63_, 70, 77, 84.
True or false?
The question "Is 70 divisible by 6?" means the same thing as "Is 6 a factor of 70?".
True!
Find the factors of 60 using a T-chart.
Factors of 60: 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30 and 60.
Using a factor rainbow, find the factors of 36.
Factors of 36 are 1, 2, 3, 4, 6, 9, 12, 18 and 36.