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Chapter 4 Review
Contributed by: Hales
Tell whether the number  93 is prime or composite.
prime
4.1 Factors and Prime Factorization
composite
Tell  whether the number  53 is prime or composite.
prime
4.1 Factors and Prime Factorization
composite
23 • 32
Which of the following is
the prime factorization
of the number 72? 
2•2•2•6
22• 33
2•2•2•3•3•3
4.1 Factors and Prime Factorization
22•7• 15
Which of the following is
the prime factorization
of the number 420? 
2•2•3•5•5•7
23 • 3 •5 •7
22• 3• 5• 7
4.1  Factors and Prime Factorization
The GCF of 77 and 51 is
Find the greatest common factor (GCF) and
tell whether the numbers are relatively prime.
Yes, they are relatively prime.
They are not relatively prime.
Two answers are required.
4.2 Greatest Common Factor
.
The GCF of 4ab2 and 27bc3 is
Find the greatest common factor (GCF).
4.2 Greatest Common Factor
.
Write the simplest form of the fractions.
14s3
21s4
84
8
=
=
4.3 Simplest Form
Which of the following represents
the least common multiple (LCM)
of the numbers 21 and 14.
7
84
42
14
4.4 Least Common Multiple
4m2
Which of the following represents
the least common multiple (LCM)
of the following monomials:
36m3
4m3
,
36m2
36m2
4.4 Least Common Multiple
72m5
614
Which of the following represents the product of
648
66 • 68
114
4.5 Rules of Exponents
?
3614
1214
r6
Simplify.
5/4 r12
15r7• r2
12r3
5/4 r9
4.5 Rules for Exponents
5/4 r6
Simplify.
7m• m11
2m2•7m9
=
Fill in your answer.
4.5 Rules for Exponents
         Which set of expressions are equivalent?
m-3
8-5
n0
and
=
=
1
m3
1
85
4.6  Negative and Zero Exponents
2-3
8p-5
and
=
=
-9
p5
8
1.8 x 109
Which one represents  eighteen billion
in scientific notation?
Write the number eighteen billion
in standard form.
1.8 x 1010
4.7  Scientific Notation
18 x 109
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