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Prime Factorization How can a number be broken down into smaller parts?

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Start thinking

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Factor Pairs You just worked with factor pairs. 2 and 15 are factor pairs of 30. Example

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Factor Pair Example

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Prime VS. Composite

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Prime Vs. Composite Prime Number = has only two factors, one and itself Composite Number = has more than two factors One = neither prime nor composite.

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Use a Factor Tree or Stack Method to complete prime factorization Hint: Always start with the lowest prime number 2 when factoring. If 2 doesn’t divide in, then try 3. Write the prime factorization of 48.

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Write the prime factorization of 45.

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Mini-Assessment

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Summary How can a number be broken down into smaller parts?

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