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WorksheetsUnit 4 Segment 1 and 2
Total questions: 12
Worksheet time: 27mins
Name
Class
Date
1.
Which of the following numbers is not prime?
a)
87
b)
47
c)
2
d)
11
2.
Which of the following numbers is prime?
a)
87
b)
47
c)
21
d)
192
3.
Which of the following numbers is Composite?
a)
89
b)
107
c)
2198
d)
3
4.
Is zero a prime number?
a)
Yes
b)
No
c)
Who cares
5.
What is the definition of a prime number?
a)
A number that has exactly 2 factors.
b)
A number that is divisible by more than two factors
c)
A number with one factor
6.
Prime factor 45
a)
3 x 3 x 5
b)
5 x 3
c)
5 x 9
d)
3 x 5 x 3
7.
Prime Factor 108
a)
23 x 32
b)
2 x 2 x 3 x 3 x 3
c)
2 x 4 x 9
d)
22 x 33
8.
Prime Factor 11
a)
1 x 11
b)
5 x 6
c)
11
d)
no factors
9.
2 x 2 x 2 is the prime factorization of
a)
6
b)
12
c)
22
d)
8
10.
Use a factor tree to find the prime factorization of 105
a)
3x5x7
b)
11x5x3
c)
7x5x2x1
d)
7x5x3x2
11.
Use a number tree to find the prime factorization of 111
a)
3x33
b)
3x3x11
c)
3x37
d)
1x3x4x9
12.
BONUS: Prime Factor the year 2016
a)
25x32x7
b)
2x9x7
c)
26x33x5
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