WorksheetsBaldi's Math Quiz: 12. Greatest Common Divisor
Total questions: 16
Worksheet time: 41mins
Name
Class
Date
1.
What is the GCF of 21 and 49?
(a)
2.
The least common multiple of 18 and 24 is ________.
a)
6
b)
24
c)
36
d)
72
3.
The greatest common divisor of 91, 39 and 78 is ________.
a)
24
b)
13
c)
39
d)
91
4.
GCF of 27 and 70
a)
3
b)
5
c)
7
d)
10
5.
GCF of 24 and 56
a)
2
b)
4
c)
6
d)
8
6.
GCF of 99 and 54
a)
9
b)
3
c)
6
d)
8
7.
GCF of 28 and 40
a)
2
b)
4
c)
7
d)
8
8.
GCF of 20 and 35
a)
4
b)
5
c)
7
d)
20
9.
GCF of 20 and 70
a)
2
b)
5
c)
7
d)
10
10.
GCF of 20 and 35
a)
4
b)
5
c)
7
d)
20
11.
What is the greatest common factor of 8 and 10?
a)
1
b)
3
c)
4
d)
2
12.
What is the greatest common factor of 4 and 16?
a)
4
b)
2
c)
1
d)
16
13.
What is the greatest common factor of 6 and 21?
a)
6
b)
2
c)
3
d)
7
14.
Find the GCF of 6 and 24.
a)
2
b)
3
c)
1
d)
6
15.
What is the GCF of 4 and 12?
a)
3
b)
1
c)
6
d)
4
16.
What is the GCF of 20 and 30?
a)
5
b)
2
c)
10
d)
20
100 %
