1-2: Prime Factors Factors:

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Presentation transcript:

1-2: Prime Factors Factors: When 2 or more numbers are multiplied, each number is called a factor of the product Ex) 1 x 5 = 5 2 x 5 = 10 1 x 10 = 10 ** There are special types of numbers**

Neither prime nor composite: 0 and 1 Prime Numbers Composite Numbers A whole number that has exactly 2 factors, 1 and itself. Ex) 2, 3, 5, 7, 11…… A number greater than 1 with more than 2 factors. Ex) 6 10 18 Neither prime nor composite: 0 and 1

Tell whether each number is prime, composite or neither. 28 2. 37 3. 81 4. 0 5. 19 6. 63

PRIME Factoring Let’s Check out another Video!!! http://www.khanacademy.org/video/prime-factorization?playlist=Developmental%20Math

Prime factorization: - Every composite number can be expressed as a product of prime numbers. Use: FACTOR TREES 36 29 81

Let’s Practice a bit!!!!!! P 30 #1-9