Factors
1, 2, 5, 10 are factors for what number?
What is 10.
The first 5 multiples of 3 are...
3, 6, 9, 12, 15
What are the factors of 18?
1, 2, 3, 6, 9, 18
The first five multiples of 2 are...
2, 4, 6, 8, 10
True or false:
Prime numbers only have two factors, 1 and the number itself.
True
1, 3, 9, 27 are factors for what number?
What is 27.
The first 5 multiples of 5 are...
5, 10, 15, 20, 25
What are the factors of 15?
1, 5, 15,
The four multiples of 20 are...
20, 40, 60, 80
Which of the following numbers has 7 as a factor?
10 15 20 21 40
21
What are the factors of 17?
1, 17
The first 5 multiples of 10 are...
10, 20, 30, 40, 50
1, 13
The first ten multiples of 10 are
10, 20, 30, 40, 50, 60, 70, 80, 90, 100
Find the first 5 multiples of 8
8, 16, 24, 32, 40
1, 3, 5, 15 are factors for what number?
The first 5 multiples of 9 are...
9, 18, 27, 36, 45
What are the factors of 30?
1, 2, 3, 5, 6, 10, 15, 30
The first four multiples of 2 are...
2, 4, 6, 8
What is a prime number?
Give an example of a prime number.
13
What are the factors of 20?
1, 2, 4, 5, 10, 20
The first 5 multiples of 6
6, 12, 18, 24, 30
What are the factors of 42?
1, 2, 3, 6, 7, 14, 21, 42
The first five multiples of 3 are...
3, 6, 9, 12, 15
What is a composite number?
Give an example
A number that has more than 2 factors.
45