True/False
Indicate whether the sentence or statement is true
or false.
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1.
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a.9
31 is a prime number
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2.
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a.9
99 is a prime number
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3.
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a.9 The prime factorization of 74 is 2 
37
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4.
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b.9 The prime factorization of 165 is 3  5 
11
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5.
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b.9 The prime factorization of 183 is 3  5 
61
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6.
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a.9
154 is a prime number
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7.
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b.9 The prime factorization of 134 is 2  3 
67
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8.
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b.9 The prime factorization of 147 is 5  7
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9.
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a.9
129 is a prime number
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10.
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a.9
38 is a composite number
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11.
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a.9
194 is a composite number
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12.
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b.9 The prime factorization of 106 is 2  5 
3
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13.
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b.9 The prime factorization of 350 is 2  5 
5  7
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14.
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a.9 The prime factorization of 46 is 2 
2  23
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15.
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b.9 The prime factorization of 114 is 2  3 
19
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16.
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b.9 The prime factorization of 141 is 3  37
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17.
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b.9 The prime factorization of 180 is 2  3 
5
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18.
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b.9 The prime factorization of 215 is 5  43
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Multiple Choice
Identify the
letter of the choice that best completes the statement or answers the question.
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19.
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a.9 Tell which number is composite
23,
103, 65 a. | 23 | c. | 65 | b. | 103 | d. | None of the above | | | | |
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20.
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b.9 The prime factorization of 27 is a. | 3  3 
3 | c. | 2  3 
3 | b. | 3  3 | d. | None of the above | | | | |
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21.
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b.9 The prime factorization of 117 is a. | | c. | 2 
2  13 | b. | 3  3 
13 | d. | None of the
above | | | | |
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22.
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a.9 Tell which number is composite
19,
61, 39 a. | 19 | c. | 39 | b. | 61 | d. | None of the above | | | | |
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23.
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a.9 Tell which number is prime
112,
95, 97 a. | 97 | c. | 95 | b. | 112 | d. | None of the above | | | | |
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24.
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a.9 The prime factorization of 70 is a. | 2  3 
5 | c. | 7  10 | b. | 2  5 
7 | d. | None of the
above | | | | |
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25.
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a.9 The prime factorization of 87 is a. | 3  29 | c. | 1  87 | b. | 3 
3  29 | d. | None of the above | | | | |
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26.
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b.9 The prime factorization of 20 is a. | 2  2 
3 | c. | 2  2 
5 | b. | 2  10 | d. | None of the above | | | | |
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27.
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b.9 The prime factorization of 104 is |