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Prime & Composite
By NICHOLAS GLAESER
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Last updated 9 months ago
21 questions
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Question 1
1.
A
prime number
is a number with
exactly
_______ factors.
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Question 2
2.
A
composite number
is a number with
more than
_______ factors.
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Question 3
3.
Factors
are numbers that are __________ together.
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Question 4
4.
Tell whether the number is
prime
or
composite
.
19 is a _______ number.
Type
prime
or
composite
.
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Question 5
5.
Tell whether the number is
prime
or
composite
.
81 is a _______ number.
Type
prime
or
composite
.
visibility
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Question 6
6.
Tell whether the number is
prime
or
composite
.
52 is a _______ number.
Type
prime
or
composite
.
visibility
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Question 7
7.
Drag each number to either
prime
or
composite
.
51
43
27
19
33
23
Prime
Composite
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Question 8
8.
Drag each number to either
prime
or
composite
.
4
9
63
28
11
17
2
Prime
Composite
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Question 9
9.
Make a factor chart for the number 12. Then select
all
the
factors
of 12.
1
2
3
4
5
6
7
8
9
10
11
12
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Question 10
10.
Use question 7 to determine if 24 is
prime
or
composite
.
The number 24 is a ______________ number.
Spelling matters.
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Question 11
11.
What is the smallest
composite
number?
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Question 12
12.
What is the smallest
prime
number that is
odd
?
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Question 13
13.
What is the only
even
prime
number?
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Question 14
14.
Select
all
the
composite
numbers from the list below. Use your divisibility rules.
7, 21, 37, 44, 51, 63, 81, 82
7
21
37
44
51
63
81
82
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Question 15
15.
How many
factors
does the number 8 have?
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Question 16
16.
Select
all
the numbers below that 24 is
divisible
by.
Use the divisibility rules sheet.
2
3
4
5
6
9
10
visibility
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Question 17
17.
Select
all
the numbers below that 30 is
divisible
by.
Use the divisibility rules sheet.
2
3
4
5
6
9
10
visibility
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Question 18
18.
Select
all
the numbers below that 63 is
divisible
by.
Use the divisibility rules sheet.
2
3
4
5
6
9
10
visibility
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Question 19
19.
Select
all
the numbers below that 108 is
divisible
by.
Use the divisibility rules sheet.
2
3
4
5
6
9
10
visibility
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Question 20
20.
Select
all
the numbers below that 180 is
divisible
by.
Use the divisibility rules sheet.
2
3
4
5
6
9
10
visibility
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Question 21
21.
Select
all
the numbers below that 51 is
divisible
by.
Use the divisibility rules sheet.
2
3
4
5
6
9
10
visibility
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