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Terra Nova Practice
Lesson 1
Multiples and Factors
Problem 1
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What are all the factors of 64?
A 1,2,4,8,32,64
B 1, 2, 4, 8, 16, 32, 64
C 1, 2, 4, 8, 16, 32
D 2, 4, 8, 32, 64
Problem 2
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What are the first three multiples of 13?
A 13, 26, 39
B 13, 26, 42
C 1, 13,26
D 1, 13, 169
Problem 3
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Which of the following is a factor of 27?
A 2
B 3
C 4
D 7
Problem 4
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What number is the GCF of 12 and 30?
A 2
B 4
C 6
D 12
Problem 5
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What number is the LCM of 4 and 10?
A 20
B 39
C 36
D 600
Problem 6
• Mrs. Ordover can divide her class into
groups of 2 or groups of 4. Which of the
following is a possible size of her class?
• A 27
• B 28
• C 29
• D 30
Problem 7
• Hans is in a class of 21 students. Which
of the following is a group into which his
class can be divided?
• A Groups of 3 students
• B Groups of 4 students
• C Groups of 5 students
• D Groups of 6 students
Problem 8
• The number 36 is the LCM of which pair of
numbers?
• A 6 and 9
• B 9 and 12
• C 3 and 12
• D 3 and 4
Problem 9
• The number 4 is the GCF of which pair of
numbers?
• A 16 and 20
• B 18 and 20
• C 20 and 26
• D 16 and 24
Problem 10
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What is the prime factorization of 48?
A 32 x 4 x 2
B 3 x 24
C 7x3x2
D 22 x 12
Problem 11
• Which of the following pairs of factors
cannot be used to find the prime
factorization of 64?
• A 8x8
• B 16 x 4
• C 16 x 1
• D 32 x 2
Answers
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1
2
3
4
5
6
B
A
B
C
A
B
7
8
9
10
11
A
B
A
B
C