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12 questions
Create a factor tree and find the prime factorization for 80
24⋅5
42⋅5
2⋅2⋅2
8⋅5⋅2
Write 144 in prime factorization. Use a factor tree. Show your work.
22 x 34
24 x 32
23 x 33
24 x 33
What number has the prime factorization of 23 • 32 • 5?
360
720
180
240
What is the GCF of 18 and 24?
3
6
8
9
Find the GCF of:
1
15
115
345
Which pair of numbers have a GCF of 3?
15 and 27
20 and 30
45 and 15
9 and 18
Which pair of numbers has a GCF of 8?
8, 36
40, 80
16, 56
24, 42
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