Font size
S
M
L
XL
WorksheetsFactors and Multiples
Total questions: 20
Worksheet time: 40mins
Name
Class
Date
1.
Which of the following is a factor of 12? Select all that apply.
a)
12
b)
2
c)
24
d)
3
2.
Select all of the multiples of 8.
a)
2
b)
8
c)
32
d)
4
3.
Select all of the prime numbers.
a)
3
b)
9
c)
29
d)
2
4.
Select all of the composite numbers.
a)
12
b)
16
c)
3
d)
7
5.
A prime number is...
a)
a number that has only one factor.
b)
a number that has at least two factors.
c)
a number that has more than two factors.
d)
a number that has only two factors.
(1 and itself)
(1 and itself)
6.
Which number is NOT prime?
a)
3
b)
7
c)
17
d)
21
7.
Which number is a multiple of 12?
a)
36
b)
40
c)
80
d)
3
8.
All the factors of 15 are:
a)
1, 2, 3, 5, 13, 15
b)
1, 15
c)
1, 6, 9, 15
d)
1, 3, 5, 15
9.
A number having more than two factors is called
a)
Prime
b)
Composite
c)
Factor
d)
Multiple
10.
The smallest 2-digit prime number is
a)
10
b)
11
c)
97
d)
99
11.
The 4th multiple of 9 is
a)
18
b)
27
c)
36
d)
45
12.
7 x 5=
a)
20
b)
35
c)
40
d)
25
13.
Which choice lists all the factors for the number 24?
a)
2, 3, 4, 6, 8, 12, 24
b)
2, 3, 4, 6, 8, 12, 24, 36
c)
1, 2, 3, 4, 6, 8, 12, 24
d)
1, 2, 4, 5, 6, 8, 12 ,24
14.
Which number is a factor of 6?
a)
12
b)
2
c)
8
d)
10
15.
14, 49, and 28 are all multiples of what number?
a)
2
b)
7
c)
4
d)
5
16.
List the first 5 multiples of 8
a)
1, 2, 4, 8
b)
8, 16, 25, 32, 40
c)
8, 16, 24, 32, 40
d)
8, 16, 24, 31, 40
17.
What are the next three multiples?6, 12, 18, ___ ,___ ,___
a)
24, 30, 34
b)
24, 36, 42
c)
24, 30, 36
d)
22, 28, 34
18.
The smallest composite number is_____
a)
1
b)
2
c)
3
d)
4
19.
Which of the following numbers are co-primes?
a)
8,12
b)
8,15
c)
9,18
d)
15,18
20.
The least prime numbers with consecutive digits is____
a)
32
b)
23
c)
43
d)
67
Reset
