Posted by **Sally** on Tuesday, June 16, 2009 at 5:58pm.

how do you find prime factorization?

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**stephanie**, Tuesday, June 16, 2009 at 6:03pm
how to calculate food you buy

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**Anonymous**, Tuesday, June 16, 2009 at 6:04pm
what???

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**Sally**, Tuesday, June 16, 2009 at 6:05pm
how does that help me find prime factorization?

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**Amy**, Tuesday, June 16, 2009 at 8:14pm
You reduce your number down to be only factors that are prime.

Example:

36 factors into 3 x 12. 3 is prime, but 12 is not, so you need to factor 12. 12 can break down into 3 x 4. 3 is prime, 4 isn't. 4 breaks down into 2 x 2. 2 is prime.

The prime factorization for 36 would be 2x2x3x3 or 2^2 x 3^2.

It would be easier to show as a factor tree, but I'm not sure I could type one out :)

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