Which of the Following is prime? 39, 43, 51, 93

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Presentation transcript:

Which of the Following is prime? 39, 43, 51, 93 Prime & Composite #s Prime – Only have 2 factors Composite – Has more than 2 factors. Circle the composite numbers listed below. 8, 10, 2, 3, 12, 5, 13, 26, 35 Which of the Following is prime? 39, 43, 51, 93

Obj 55 – Factors of Composite #s Factors – A # that can be divided evenly into a composite number. What are the factors of 45? What are the Factors of 28?

Obj 56 – Prime Factorization Factor Trees! You aren’t done until all branches lead to a prime number. Make a factor tree of 96.

Obj 56 – Continued Make a factor tree of 196. Make a factor tree of 132.