5 Minute Check
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Transcript of 5 Minute Check
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5 Minute CheckFind the prime factorization for each number.
1. 1282. 923. 2424. 256
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Friday, August 30
Review
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Review
76Is this number divisible by 2,3,4,5,6,9,10?
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Review
76Is this number divisible by 2,3,4,5,6,9,10?
76 is divisible by 2 and 4.
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Review
453Is this number divisible by 2,3,4,5,6,9,10?
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Review
453Is this number divisible by 2,3,4,5,6,9,10?
453 is divisible by 3.
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Review
64800Is this number divisible by 2,3,4,5,6,9,10?
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Review
64800Is this number divisible by 2,3,4,5,6,9,10?
453 is divisible by 2, 3, 4, 5, 6, 9 and 10.
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ReviewIf a number only has two factors, one and itself,
it is called what?
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ReviewIf a number only has two factors, one and itself,
it is called what?
A prime number
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ReviewIf a number has more than two factors it is
called what?
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ReviewIf a number has more than two factors it is
called what?
A composite number
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ReviewIs 34 a prime or composite number?
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ReviewIs 34 a prime or composite number?
Composite number.
Remember - all even numbers, except for 2, are composite.
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ReviewIs 51 a prime or composite number?
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ReviewIs 51 a prime or composite number?
Composite number.
5 + 1 = 6It is divisible by 3
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ReviewIs 65 a prime or composite number?
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ReviewIs 65 a prime or composite number?
Composite number.
Since the last digit is a 5, it is divisible by 5.
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ReviewIs 53 a prime or composite number?
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ReviewIs 53 a prime or composite number?
Prime number.
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ReviewIs 88 a prime or composite number?
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ReviewIs 88 a prime or composite number?
Composite Number
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ReviewList all factors for 26.
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ReviewList all factors for 26.
26: 1, 2, 13, 26
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ReviewList all factors for 25.
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ReviewList all factors for 25.
25: 1, 5, 25
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ReviewList all factors for 32.
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ReviewList all factors for 32.
32: 1, 2, 4, 8, 16, 32
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ReviewCreate a factor tree for 26.
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ReviewCreate a factor tree for 26.
26 / \ 2 X 13
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ReviewCreate a factor tree for 25.
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ReviewCreate a factor tree for 25.
25 / \ 5 X 5
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ReviewCreate a factor tree for 24.
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ReviewCreate a factor tree for 24.
24 / \ 2 X 12 I / \
2 X 2 X 6 I I / \ 2 X 2 X 2 X 3
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ReviewCreate a factor tree for 66.
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ReviewCreate a factor tree for 66.
66 / \ 2 X 33 I / \
2 X 3 X 11
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ReviewCreate a factor tree for 42.
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ReviewCreate a factor tree for 42.
42 / \ 2 X 21 I / \
2 X 3 X 7