Prime Or Composite Numbers Chart Template Page 6
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Date
FACTORS AND MULTIPLES
The numbers that are multiplied to
give the product of a number are
Example: 1 x 18 = 18, 2 x 9 = 18, 3 x 6 = 18
called factors.
The factors of 18 are 1, 2, 3, 6, 9, and 18.
The factors of a number also evenly
18 is a composite number since
divide the number.
it has more than two factors.
18 is a multiple of 2 and 9. It is also a multiple of 3 and 6.
A number with more than two factors
If you can divide a number evenly by 2, the number is even.
is a composite number.
If the remainder is 1 when you divide by 2,
The product of a whole number and
the number is odd.
any other whole number is a
Examples: 18 ÷ 2 = 9, so 18 is even.
multiple of the whole numbers.
19 ÷ 2 = 9 R1, so 19 is odd.
List all the factors of each number.
Is the number odd or even?
1. 16
2. 15
Odd or Even?
Odd or Even?
3. 12
4. 30
Odd or Even?
Odd or Even?
5. 35
6. 45
Odd or Even?
Odd or Even?
Write a multiple of each pair of numbers.
7. 3 and 5
8. 4 and 6
9. 3 and 10
10. 5 and 9
CHALLENGE
What factors do 18 and 42 have in common?
What is the least common multiple of 6 and 8
(the least number that is a multiple of both numbers)?
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3
Discovering Math, Numbers and Operations, Factors and Multiples . . . or, Changing Times
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