1.
Which number is
not
a prime number?
A.
11
B.
7
C.
51
D.
31
Hint
2.
Refer to the diagram below. This is an example of a _____.
A.
greatest common factor
B.
composite list
C.
factor tree
D.
prime number
Hint
3.
Select the correct factorization.
A.
57
axy
2
= 57 ·
a
·
x
·
y
·
y
·
y
B.
52
b
2
c
= 2 · 2 · 13 ·
b
·
b
·
c
C.
66
ax
3
= 2 · 33 ·
a
·
x
·
x
D.
–49
z
3
b
2
= –1 · 7 · 7 ·
z
·
z
·
b
·
b
Hint
4.
The product of the prime factors common to two integers is called the _____.
A.
least common denominator
B.
composite term
C.
prime factorization
D.
greatest common factor
Hint
5.
Find the GCF of 30, 45, and 75.
A.
10
B.
6
C.
15
D.
5
Hint