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Prime Numbers

- Some Simple Tips and Reminders

Powerpoint hosted on www.worldofteaching.com Pleas

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Definitions

- Even Numbers Any number that can be divided by

2 - Odd Numbers Any number that cannot be divided

by 2 - Composite Number An integer that can be divided

by at least one other number (a factor) other

than itself

Definitions

- Prime Number An integer whose only factors are

1 and itself. - Factor a number that can divide another number

without a remainder. - Prime Factors an expression of numbers that

divides another integer without a remainder where

all the factors are prime.

What numbers are prime?

- Lets look at a number grid from 1 to 100 and see

how they were discovered.

Heres How You Do It

Take out the number 1 because it is a special

number

Heres How You Do It

Take out the number 1 because it is a special

number

Heres How You Do It

Take out numbers that have a composite factor of 2

Heres How You Do It

Take out numbers that have a composite factor of 2

Heres How You Do It

Take out numbers that have a composite factor of 3

Heres How You Do It

Take out numbers that have a composite factor of 3

Heres How You Do It

Take out numbers that have a composite factor of 5

Heres How You Do It

Take out numbers that have a composite factor of 5

Heres How You Do It

Take out numbers that have a composite factor of 7

The PRIME Numbers!

Take out numbers that have a composite factor of 7

How Do We Know They Are Prime?

- Composite numbers can be placed into varying

types of rectangles - Prime numbers cannot
- Lets look at that

Composite Numbers

6

Prime Numbers

Thats It!

- A prime number cannot be divided by anything

other than 1 and itself.

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presentations for free. Or use it to find and download high-quality how-to PowerPoint ppt presentations with illustrated or animated slides that will teach you how to do something new, also for free. Or use it to upload your own PowerPoint slides so you can share them with your teachers, class, students, bosses, employees, customers, potential investors or the world. Or use it to create really cool photo slideshows - with 2D and 3D transitions, animation, and your choice of music - that you can share with your Facebook friends or Google+ circles. That's all free as well!

For a small fee you can get the industry's best online privacy or publicly promote your presentations and slide shows with top rankings. But aside from that it's free. We'll even convert your presentations and slide shows into the universal Flash format with all their original multimedia glory, including animation, 2D and 3D transition effects, embedded music or other audio, or even video embedded in slides. All for free. Most of the presentations and slideshows on PowerShow.com are free to view, many are even free to download. (You can choose whether to allow people to download your original PowerPoint presentations and photo slideshows for a fee or free or not at all.) Check out PowerShow.com today - for FREE. There is truly something for everyone!

For a small fee you can get the industry's best online privacy or publicly promote your presentations and slide shows with top rankings. But aside from that it's free. We'll even convert your presentations and slide shows into the universal Flash format with all their original multimedia glory, including animation, 2D and 3D transition effects, embedded music or other audio, or even video embedded in slides. All for free. Most of the presentations and slideshows on PowerShow.com are free to view, many are even free to download. (You can choose whether to allow people to download your original PowerPoint presentations and photo slideshows for a fee or free or not at all.) Check out PowerShow.com today - for FREE. There is truly something for everyone!

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