NEW
Font size
S
M
L
XL
WorksheetsGCF, LCM and Number Lines
Total questions: 19
Worksheet time: 21mins
Name
Class
Date
1.
GCF of 24 and 48
a)
3
b)
6
c)
12
d)
24
2.
GCF of 16 and 40
a)
4
b)
8
c)
2
d)
10
3.
GCF of 35 and 49
a)
5
b)
3
c)
7
d)
4
4.
GCF of 36 and 99
a)
9
b)
6
c)
11
d)
4
5.
What is the Least Common Multiple (LCM) of 8 and 6?
a)
16
b)
12
c)
24
d)
14
6.
Find the Least Common Multiple of 9 and 6.
a)
18
b)
36
c)
38
d)
72
7.
Which pair of numbers has a GCF of 1?
a)
51 and 17
b)
20 and 9
c)
24 and 27
d)
14 and 44
8.
Ap- What is the LCM of 2, 4, 6?
a)
6
b)
12
c)
4
d)
2
9.
Prime numbers have:
a)
Exactly 2 factors
b)
2 pairs of factors
c)
More than 2 factors
d)
1 factor
10.
Composite numbers:
a)
Are always bigger than prime numbers
b)
Have more than 2 factors
c)
Have 2 pairs of factors
d)
Don't have factors
11.
What is the LCM of 45 and 72?
a)
72
b)
3,240
c)
360
d)
260
12.
Use a number tree to find the prime factorization of 111
a)
33x3
b)
11x3x3
c)
37x3
d)
9x4x3x1
13.
Use a number tree to find the prime factorization of 42
a)
4x4x3
b)
6x7
c)
7x3x2
d)
5x4x2
14.
One is
a)
prime
b)
composite
c)
not prime or composite
d)
the loneliest number that you'll ever do
15.
What fraction is represented on the number line?
a)
1/1
b)
2/3
c)
1/2
d)
0/1
16.
Which point is 7/8?
a)
Point C
b)
Point D
c)
Point E
d)
Point F
17.
What fraction is represented at point A?
a)
4/5
b)
3/1
c)
3/4
d)
1/3
18.
What fraction is represented at point G?
a)
3/4
b)
2/3
c)
2/1
d)
1/5
19.
Which letter represents 2/6?
a)
X
b)
G
c)
C
d)
B
Reset
