## Monday, January 11, 2010

### Numbers

Factor- is a number that goes into a number exactly. With no decimals or remainders.
eg. 2 is a factor of 6
2 goes into 6 exactly 3 times
2 is not a factor of 5 because 2 goes into 5 2.5 times

Find the factors of 14, 4, 12, 16, 17, 24, 41, 96
14-1, 2, 7, 14
Why put it like that? The number is 14, 1 goes into 14 14 times and 2 goes into 14 7 times. That is also how you check if it's right or not.... (1 x 14 = 14, 2 x 7= 14)
4- 1, 2, (2) 4
12- 1, 2, 3, 4, 6, 12
16- 1, 2, 4, 8, 16
17- 1, 17
24- 1, 2, 3, 4, 6, 8, 12, 24
41- 1, 41
96- 1, 2, 3, 4, 6, 8, 12, 24, 32, 48, 96

Prime Numbers- are numbers with only 2 factors
These factors are 1 and itself
Composite Numbers- are numbers with more than 2 factors

Determine whether each number is prime or composite
....1....................9..............13...........28..........31.......41...........51
....^.................. ^............. ^............^............^.........^.............^
neither composite .....prime composite prime prime composite

Multiple- is the opposite of a factor
eg 10 is a multiple of 2
10 is a multiple of 5

The multiples of 4 are 8, 12, 16, 20, 24, 28, 32............
Lowest Common Multiple- L.C.M.
the EG. to find the L.C.M. for 3 and 4

3- 3, 6, 9, 12, 15, 18
4-4, 8, 12, 16, 20

The least common multiple is 12.

Homework!!
Find all of the factors of 10, 18, 37
Determine which numbers are prime or composite 2, 11, 17, 27
Find the L.C.M. of 2 and 4, 3 and 5, and 6 and 7

1. Good post Ana(:!!! You explained all the things we did in class well. You explained what each of them mean. You listed examples also so that'll help peolple who dont understand. You also put our homework on. Again Ana nice post(:!

2. NICE POST ANA! You wrote all the notes we had in class and you explained things very well. There's nothing i think you should fix on your blog. Good job :)

3. Good job Ana you written all the things we did in class really well. I almost thought it was Mr.Isfield.

Sophia . .
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4. Ana, you did a really great job on posting what we did in school! Your explanations were easy to understand. I really like when you changed the color of your font and when you changed the font size. Also, I liked when you made your font bold. So, I thought that really stood out. But next time, you should try to put a video, a link, and also a diagram to show that you understood the meanings. But also, to extend the learning and to help understand the process and the meanings, to others. But other than that, I think you did a fantastic job! (yy)

5. Great job! Your explanation on what we did in class was very clear, and it was easy to understand. The colours were very nice and made your post even better. But... you should put a link, picture and video next time, even though your post didn't need it as much. All in all, great job! :)

6. Good job. You explained everything well. I like how you changed the colour of important numbers and words. Next time you should add a video or picture. Other than that you did good.

7. Goood Job. You really explained what factor is ... You changed the colour when something is important and i liked that. The one thing i didnt see was a video and any pictures it kind of looked boring. Anyways Keep it yup ! :D

8. GREAT JOB ANA!! I liked how your blog was really neat and easy to understand. You explained everything very well. Your choice in colour for the important words was very well done as well. I think that next time, you should add a video or some pictures which would've made your post better. Giving us a reminder of the homework we had for that day was really important and you did that!!!! Well there's nothing else I can say. So again ... GREAT JOB :)

9. Good Job Ana! You explained everything well including the examples and theres no mistakes. Nice Job Ana!

10. Good job Ana! i now know how to do Prime Numbers, Composite Numbers and Factoring. i really liked the homework u posted at the end of you're blog, it sort of did help me work on my weaknesses.

11. Great Job Ana! Very well explained, I liked the way you used different colours and the colours aren't bright. I also like that you put the homework and changed the sized.....GREAT JOB!!

12. Good job, i like how you used colour in your post and the colours weren't very distracting my eyes GOOD JOB !

13. Good Post Anna! You covered just about everything we learned in class and you explained it very well. I also liked the colours you used to outline certain words. Great job:)!

14. Good post. Good colours and you covered everything we've done. You should put in video, links and pics though. Pretty good job.

15. nice job ana:). I liked how you changed the colors and the font.XD

16. Hey, nice job on the post! It was really nice, and well explained. Great job!

17. Great post, Ana! You explained everything very well. I liked your examples, colors and pictures. If anyone missed that day... they're sure to be able to catch up. Great job!

18. Good Job Ana!!! You explained every thing we did in class and I didn't see any thing wrong.The pictures were good and the vidio was good to.any way good job!

19. Good Job Ana! You did a great post. I liked the colours you used in your post, especially teal and purple. You explained everything well. I didn't see any mistakes. GREAT JOB! Thumbs up!:D

20. Good Job Ana, i liked the post. I liked how you changed the font color.

21. Good job Ana you did a really good job i didn't see any spelling erros i liked the coulor change you explained everything good!!!!!!!!

22. good job ana you did stuff very well!!!

23. good job you did the stuff really well!!!! GREAT JOB