how to build a factor tree you will need to use factors and prime numbers
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How to Build a Factor How to Build a Factor TreeTree
You will need to use factors and prime numbers.
Factors
12: 1, 12build the outside
12: 1, 2, 6, 12Count up to 2 --- yes, 2 x 6
12: 1, 2, 3, 4, 6, 12Count up to 3 --- yes, 3 x 4
12: 1, 2, 3, 4, 6, 12Count up to 4 --- it’s already there.
SO YOU ARE DONE!!!!!!
List the Factors
21: _________________
36: _________________
2: _________________
49: _________________
22: _________________
Prime Composite Prime Composite
Prime Numbers Only 2 factors, 1 and itself
2: 1, 2
7: 1, 7
13: 1, 13
Prime is special!
Composite More than 2 factors
4: 1, 2, 4
22: 1, 2, 11, 22
63: 1, 3, 7, 9, 21, 63
Welcome tothe herd!
(2 x 2) x (2 x 3) (2 x 2) x (2 x 3)(2 x 2) x (2 x 3) (2 x 2) x (2 x 3) 4 x 6 = 24 4 x 6 = 4 x 6 = 24 4 x 6 = 2424
When building a tree, you need to end with prime numbers!
There are many ways to build a tree, but you always end with the same prime numbers.
24
4 6
22 2
24
32 2
34
2 12
BUILD YOUR FACTOR TREES BUILD YOUR FACTOR TREES
Use factors to build your tree. End with prime numbers. Prove your tree by multiplying
the prime numbers. Place ( ) around 2 numbers. Always multiply the numbers
inside the ( ) first.
30
18
9
60
81
Factor tree answers. Factor tree answers.
30 3 x (2 x 5) 3 x 10 = 30
18 (2 x 3) x 3 6 x 3 = 18
30
3
2
10
5
30
2
5
15
3
18
3 3
32
6 3
92
18
Factor tree answersFactor tree answers
3 x 3 = 9
work this one out
These are the prime factors:(5 x 2) x (2 x 3)
work this
one out
These are the prime factors:(3 x 3) x (3 x 3)
9
3 3
60
81
Keep up the good work. Keep up the good work.
NOW TRY SOME ON YOUR OWN.
LET ME SEE YOUR WORK. BRING IT TO CLASS.
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