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WorksheetsGCF and LCM
Total questions: 13
Worksheet time: 21mins
Name
Class
Date
1.
Find the GCF of 64 and 144
a)
8
b)
6
c)
16
d)
2
2.
Find the LCM of 42 and 66
a)
2772
b)
6
c)
462
d)
132
3.
Find the LCM of 18 and 24
a)
6
b)
72
c)
24
d)
5
4.
LCM stands for
a)
Least correct multiple
b)
Latest common multiple
c)
Least common multiple
d)
Laser classroom mouse
5.
GCF stands for
a)
Greatest common factor
b)
Greatest common fraction
c)
Giant cat fingernail
d)
Greatest calculated factor
6.
multiples for the number 3 include..
a)
4,8,12,16,18,21
b)
3,5,7,9,10,12
c)
3,4,5,6,7,8
d)
3,6,9,12,15,18
7.
A factor is a number that can divide into another number with no remainder.
a)
True
b)
False
8.
A multiple must be greater than or equal to the largest starting number.
a)
True
b)
False
9.
Cassie has two pieces of wood: one is 90 inches and the other is 72 inches. She wants to cut both pieces into smaller pieces of the same length. What is the longest possible length she can cut and not have any lumber left over?
a)
9
b)
2
c)
18
d)
72
10.
At the movie theater, they give out a free drink to every 75th customer and a free bag of popcorn to every 30th customer. Who is the first customer that is going to win both free items?
a)
16th customer
b)
150th customer
c)
300th customer
d)
180th customer
11.
Sarah and Annalise both began traveling around a circular track. Henry is riding his bike, and Margo is walking. It takes Henry 7 minutes to make it all the way around, and Margo takes 12 minutes. How much time will pass until they meet at the starting line?
a)
84 minutes
b)
48 minutes
c)
854 minutes
d)
78 minutes
12.
What is the prime factorization of 24?
a)
3 x 8
b)
3 x 2 x 2 x 2
c)
4 x 6
d)
2 x 2 x 3
13.
If the expanded form is 2⋅2⋅2⋅3⋅3⋅5⋅7 what would the exponential form be?
a)
2⋅3⋅5⋅7
b)
2³⋅3²⋅5⋅7
c)
2²⋅3²⋅5⋅7
d)
8⋅9⋅35
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