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WorksheetsChapter 2: Factors & Multiples (2.1)
Total questions: 12
Worksheet time: 1hrs 5mins
Name
Class
Date
1.
Which number is a factor of 10
a)
3
b)
4
c)
5
d)
8
2.
Find ALL FACTORS of 24
a)
1, 2, 12, 24
b)
1, 2, 8, 24
c)
1, 2, 3, 4, 5, 6, 8, 12, 24
d)
1, 2, 3, 4, 6, 8, 12, 24
3.
Which shows ALL of the factors of 14?
a)
1, 14
b)
2, 7
c)
1, 2, 7, 14
d)
1, 28
4.
List the first 5 multiples of 3
a)
3, 6 10, 15, 20
b)
1, 3
c)
3, 6, 9, 12, 15
d)
6, 9, 12, 15, 18
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.
Write 36 as the product of it's prime factors...
a)
2 x 2 x 3 x 3
b)
2 x 2 x 2 x 3
c)
22 x 32
d)
22 x 3
7.
Write 210 as the product of it's prime factors...
a)
2 x 3 x 5 x 7
b)
2 x 3 x 3 x 7
c)
2 x 5 x 5 x 7
d)
2 x 3 x 7 x 7
8.
Find the prime factorization of 40
a)
2 x 5 x 2
b)
2 x 20
c)
5 x 8
d)
2 x 2 x 2 x 5
9.
Find the Highest Common Factor (HCF) of 20 and 30
a)
2
b)
5
c)
10
d)
15
10.
Find the HCF of 21 and 28
a)
3
b)
4
c)
7
d)
14
11.
Find the HCF of 40 and 60?
a)
10
b)
20
c)
30
d)
None of the above
12.
Mary has three ribbons measuring 28cm, 70cm, and 126cm. Mary wants to cut all the ribbons with the same length without any remaining. Calculate the length, in cm, of the longest ribbon that can be cut off.
a)
14
b)
24
c)
126
d)
27
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