# prime numbers and prime factorizations

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Prime Numbers and Prime Factorizations. CLICK HERE TO ADVANCE TO THE NEXT PAGE. Ms. Bobbi Casper. A Prime number is a whole number that has exactly two factors, 1 and the number itself. Examples: 11, 13, 23. PRACTICE QUESTION Determine whether each number is Prime. 29 39 47 - PowerPoint PPT Presentation

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• Prime Numbers and Prime Factorizations

CLICK HERE TO ADVANCE TO THE NEXT PAGEMs. Bobbi Casper

• A Prime number is a whole number that has exactly two factors, 1 and the number itself. Examples: 11, 13, 23

PRACTICE QUESTION

Determine whether each number is Prime.293947

Now click here to go to the Find the Prime Factors of a Number web site. Double check your answers to make sure they are correct. When you are finished return to this page to advance to the next page.

• A composite number is a number greater than 1 with more than two factors. Examples: 6, 10, 18

QUESTIONDetermine if each number is prime or composite.271949

Next click here to go to E-lab, Prime and Composite Numbers. Scroll down the page to the blue box. Click on Find Factors to check your answers above. When you are finished return to this page to advance to the next page.

• Neither prime nor composite numbers are:

1 - because it has only one factor, and 0 - because 0 has an infinite number of factors. CLICK HERE

• Prime Factorizations using Factor Trees

Now that you are familiar with prime and composite numbers CLICK on the web site below to learn about Factor Trees.

When you are finished on the web return to this page to advance to the next page.

• Practice Factor TreesQUESTION 1

Find the prime factorization of 54.A. 2x2x3x3B. 2x3x3x4C. 2x2x2x3D. 2x3x3x3

• Question 1

• CONGRATULATIONS!!!!!!

You are correct!! The Prime factors of 54 are 2x3x3x3.

• Practice Factor TreesQUESTION 2

Find the prime factorization of 36.A. 2x2x3x3B. 2x3x3x3C. 2x2x2x3D. 2x2x3x4

• CONGRATULATIONS!!!!!!

You are correct!! The Prime factors of 36 are 2x2x3x3.

• Questions 2

• Practice Factor TreesQUESTION 3

Find the prime factorization of 57.A. 3x5x7B. 2x3x4C. 3x15D. 3x19

• Question 3

• CONGRATULATIONS!!!!!!

You are correct!! The Prime factors of 57 are 3x19.

• Practice Factor TreesQUESTION 4

Find the prime factorization of 30.A. 2x2x3x5B. 2x3x4x5C. 2x3x5D. 2x4x5

• CONGRATULATIONS!!!!!!

You are correct!! The Prime factors of 30 are 2x3x5.

• Practice Factor TreesQUESTION 5

Find the prime factorization of 48.

A. 2x2x3x4B. 2x2x2x3C. 2x2x2x5D. 2x2x2x2x3

• CONGRATULATIONS!!!!!!

You are correct!! The Prime factors of 48 are 2x2x2x2x3.