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# Prime Factorization

## by mmeddin on Sep 02, 2009

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## Prime FactorizationPresentation Transcript

• PRIME FACTORIZATION
USING FACTOR TREES!
• How to Do Prime Factorization Using a Factor Tree
Step 2 – Write down a multiplication
problem that equals this number or
any pair of factors of this number.
Step 3 – Continue until you have
reached all prime numbers. Circle the
prime numbers and write the product.
• 18
The prime factorization of 18 is
2 x 3 x 3
or 2 x 32
9
2
3
3
• Two different factor trees for the same number will still result in the same prime factorization.
36
36
3
12
4
9
3
4
3
3
2
2
2
2
22 x 32
22 x 32
• You can check your prime factorization by multiplying your answer. If you get the original number, you are correct.
36
4
9
3
3
2
2
4 x 9 = 36
22 x 32