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Number Theory 101 Flashcards | StudBud
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Number Theory 101
Number Theory 101
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Multiples, Factors, and Prime Factorization
Flashcards
15 cards
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Practice quiz
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Questions
15
Answers
1
Select all of the numbers that are prime.
87
17
43
49
14
37
2
Select any factors of 15.
5
30
15
3
3
12, 24, 36, 48, ... are all _________ of 12.
factors
multiples
4
39 is a ______ number
composite
prime
5
Select all of the numbers that are composite.
22
97
11
85
27
19
6
Select all factors of 14.
1
28
2
7
14
3
7
4, 8, 12, 16, 20, ... are all _______ of 4
factors
multiples
8
Select all of the numbers that are prime.
85
50
99
2
89
47
9
1 and 12; 2 and 6; 3 and 4 are all _______ of 12
factors
multiples
10
19 is a prime number.
True
False
11
Which of the following is the prime factorization of 8?
2 x 4
23
2 x 2 x 2
8 x 1
12
Which of the following is the prime factorization of 75?
3 x 25
75 x 1
3 x 5 x 5
3 x 52
13
How can 2 x 2 x 2 x 3 x 5 x 5 can be written using exponents?
23 x 3 x 5 x 5
23 x 3 x 52
14
___________ numbers have
more
than two factors.
Composite
Prime
15
Select the prime factorization of 36.
2 x 2 x 3 x 3
22 x 32
2 x 3 x 5
6 x 6
