WorksheetsFactorization Albia 6
Total questions: 28
Worksheet time: 28mins
Name
Class
Date
1.
Use a number tree to find the prime factorization of 65
a)
5x13
b)
7x6x5
c)
5x3x3x2
d)
7x5x4
2.
Use a number tree to find the prime factorization of 42
a)
4x4x3
b)
6x7
c)
7x3x2
d)
5x4x2
3.
Use a number tree to find the prime factorization of 64
a)
4x4x4
b)
4x4x2x2
c)
2x2x2x2x2x2
d)
4x4x2x1
4.
Use a number tree to find the prime factorization of 33
a)
33
b)
11x3
c)
10x3
d)
3x3x3x2
5.
Use a number tree to find the prime factorization of 48
a)
4x2x6
b)
4x2x2x3
c)
3x2x2x2x2
d)
12x4
6.
Use a number tree to find the prime factorization of 18
a)
3x2x2
b)
3x3x3
c)
33x3
d)
3x3x2
7.
Use a number tree to find the prime factorization of 105
a)
7x5x3
b)
11x5x3
c)
7x5x2x1
d)
7x5x3x2
8.
Use a number tree to find the prime factorization of 111
a)
33x3
b)
11x3x3
c)
37x3
d)
9x4x3x1
9.
Which number is a factor of 15
a)
2
b)
9
c)
3
10.
Which number is a factor of 20?
a)
5
b)
3
c)
6
11.
Which number is a composite number?
a)
10
b)
5
c)
7
12.
Which number is a factor of 100?
a)
8
b)
1
c)
3
13.
Which number is a factor of 4?
a)
3
b)
2
c)
0
14.
List the factors of 24
a)
1,2,3,4,6,8,12,24
b)
2,4,6,8,10,12,14,16
c)
3,6,9,12,15
d)
4,16,24,36
15.
List all the factors of 36
a)
2,12,6,36
b)
1,2,3,12,36
c)
1,2,3,4,6,9,12,18,36
d)
1,4,6,9,12
16.
1,2,8 and 16 are all factors of 16. Which factor is missing
a)
3
b)
4
c)
5
d)
6
17.
2 x 2 x 2 is the prime factorization of
a)
6
b)
12
c)
22
d)
8
18.
One is
a)
prime
b)
composite
c)
not prime or composite
d)
the loneliest number that you'll ever do
19.
What number is never allowed in a factor tree?
a)
13 (it's bad luck!)
b)
1
c)
8675309
d)
2
20.
Which is the prime factorization of 12?
a)
2 x 6
b)
2 + 2 + 2 + 2 + 2 + 2
c)
2 x 2 x 3
d)
1 x 2 x 2 x 3
21.
What are the prime factors of 30?
a)
3, 2, 5
b)
1, 2, 3, 5, 6, 15, 30
c)
3, 30
d)
10, 3
22.
What is the prime factorization of 16?
a)
1 x 16
b)
2 x 2 x 4
c)
2 x 2 x 2 x 2
d)
8 + 8
23.
Use a number tree to find the prime factorization of 64
a)
4x4x4
b)
4x4x2x2
c)
2x2x2x2x2x2
d)
4x4x2x1
24.
Use a number tree to find the prime factorization of 33
a)
33
b)
11x3
c)
10x3
d)
3x3x3x2
25.
Which of these is NOT a factor of 36?
a)
2
b)
8
c)
12
d)
6
26.
What is a prime factorization
a)
A whole number written as a doge emoji
b)
A whole number written as a novel
c)
A whole number written as a merchandise product
d)
A whole number written as a product of prime factors
27.
What is a factor
a)
A number, which when multiplied by a number gives the given number
b)
Prime numbered quotient
c)
Doge emoji
28.
Which of the following is a prime number?
a)
4
b)
5
c)
6
d)
8
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