Multiples
Factors
Vocabulary
Prime/Composite
Problem Solving
100
Name the first five multiples of 10.
10, 20, 30, 40, 50?
100
What are the factors of 8
1, 2, 4
100
What is a multiple of a number?
it is formed by multiplying a given number by the counting numbers. (1, 2, 3, 4, 5, etc.)
100
Which number is prime? A. 20 B. 15 C. 10 D. 5
D. 5
100
Find the missing multiples. 2, 4, ___, 8, ____, 12, 14,____
2, 4, 6, 8, 12, 14, 16
200
Name the first five multiples of 3.
3, 6, 9, 12, 15.
200
What are the factors of 16?
1, 2, 4, 8, 16
200
What are factors of a number?
the numbers you multiply together to get a product
200
Which number is composite. A. 4 B. 5 C. 11 D. 17
A. 4
200
List the factors of 24
1, 2, 3, 4, 6, 8, 12, 24
300
Name the first five multiples of 7.
7, 14, 21, 28, 35
300
The factors of 18
1, 2, 3, 6, 9, 18
300
What are prime numbers?
numbers that only have two factors: one, and the number itself.
300

True or False? All even numbers are composite.

False! All even numbers are composite except for 2 which is prime because it's only factors are 1 and 2.

300

What are the factors of 27, is it prime or composite?

Composite: 1, 27 3,9

400
Name the first five multiples of 25.
25, 50, 75, 100, 125
400
Name the factors of 20
What is 1, 2, 4, 5, 10, 20
400
What are composite numbers?
numbers that have more than two factors.
400

True or False? All odd numbers are prime.

False! While many odd numbers are prime there are plenty of odd numbers that are composite: 15, 21, 27 etc.

400
What are the factors of 50?
1, 2, 5, 10, 25, 50
500
Name the first five multiples of 13.
13, 26, 39, 52, 65
500
Name the factors of 100.
1, 2, 4, 5, 10, 20, 25, 50, 100
500
Explain the process of finding the factors of a number
Start with 1 x the number. Try 2, 3, 4, etc. When you repeat your factors, cross out the repeat - you’re done at this point. If you get doubles (such as 4 x 4), then you’re done. Repeats or doubles let you know you’re done.
500
Is 36 a prime or composite number? If it is a composite number, list its factors.
composite; 1, 2, 3, 4, 6, 9, 12, 18, 36
500
Find the missing multiples. ___, 14, 21, ___, 35, ___, ___, 56, ___, 70, ___ Show your work.
7 x 1= 7 7 x 7= 49 7 x 2= 14 7 x 8= 56 7 x 3= 21 7 x 9= 63 7 x 4= 28 7 x 10= 70 7 x 5= 35 7 x 11= 77 7 x 6= 42
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