## Wednesday, November 18, 2009

### Prime Numbers and Prime Factors

What we did Today:

Notes
What are factors?:
A factor is a whole number which divides evenly into a whole number leaving no remainders. A whole number is a number without decimals in it like 2.50

What are prime numbers?: A prime number is a whole number greater than 1 that has only 2 factors: 1 & itself. 1 is not a prime number. Some examples are prime factors are 2,3,5,7,11,13.

What are prime factors?: Prime factors are factors that are prime numbers. In my words, its putting a whole number into its lowest prime numbers also known as Prime Factorization. A way to use this method is to use a Factor Tree. Lets use an example like the number 12. Find factors of 12 and put it into the lowest prime numbers you get. Here is an example of a factor tree for 12.

abby 8-73

Good job.. u forgot to put the answer for side length #6.. and nice explaination.. good job again

Alexander8-73

Nice Job though why is every thing so big?

Eric.P 8-73

Good job Darnell but why are all the words so big?

Camille873

nice exlpaination darnell, i liked how you changed the colors so you wont get mixed up.

ChristineAnne8-73

great job darnell and nice explanations

Jemineth873

good job , i can read it VERY CLEAR !