Monday, January 11, 2010

Prime Numbers

Prime Numbers.
Factor is a number that goes into another number exactly with NO decimals or remainders.
Example : 2 is a factor of 6
2 goes into 6 exactly 3 times

2 is NOT a factor of5because 2goes into 5, 2.5 times

Find the factors of 4, 12, 16, 17, 24, 41 and 96
. 4- 1, 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 have only 2 factors ( one and itself ) Composite numbers- numbers with more than 2 factors.

Determine weather each number is prime or composite.

1- Special 9- 1, 3, 9 composite 13- 1, 13 prime 28- 1, 2, 16, 28 composite 31- 1, 31 prime 41- 1,41 prime 51- 1, 3, 17, 51 composite A multiple, is the opposite of factor. Example : 10 is a multiple of 2 and 5

L.C.M. is lowest common multiple
3- 3,6 9, 12, 15, 18, 21, 24, 27, 30 ... 4- 4, 8, 12, 16, 20, 24, 28, 32, 36, 40 ... 3 and 4 both have 12 in common. 3 and 4 both have 24 in common. 12 is the lowest common multiple.
HOMEWORK


Find all the factors of 10, 18, 37

Determine which are prime and composite.
2, 11, 17, 27


Find the L.C.M. of
- 2 & 4

- 3 & 5
- 6 & 7

27 comments:

  1. Good job, Kaecee (:
    I don't think you missed anything from what we did today.
    Next time I suggest you put a link or a video.
    Overall, great job :D

    ReplyDelete
  2. Good job Kaecee.
    Try to put a link or a video next time about one of the things we did today.
    Nice colours, good job(:

    ReplyDelete
  3. Great job Kaecee!
    Your work is nice and organized. I like the chart you posted up. It was very helpful how you also put our homework. Next time you should try adding a video and/or link. Overall this was a great post. (:

    ReplyDelete
  4. Great Job Kaecee! :)
    This is your first post and you did very well. You did not miss a thing.
    Also I liked how you made each sections title bold and big and put a picture of which ones were prime numbers. But, you could have added a link. Overall great job, keep it up. :)

    ReplyDelete
  5. Good job Kaeccee,thanks for putting the homework but you didn't put any link or videos.

    ReplyDelete
  6. Great job Kaecee, everything was all organize and all nice. Also, thanks for reminding us about our homework.

    ReplyDelete
  7. Good Job Kaecee! You made the font bigger for the important parts. I also like your picture. Next time you should space it out a little bit. And also try and get a link and a video next time. But great job for your first blog!

    ReplyDelete
  8. Nice colours Kaecee, i like some of the pictures that you put in. It's nice that you put in the homework for the kids that missed math in the morning, although I did'nt need it.

    ReplyDelete
  9. GOODJOB Kaecee
    You're blog was really neat and easy to read. And I liked how you made the titles bold.

    ReplyDelete
  10. good job kaecee i liked that you bolded the important things but next time try to get a link and video but overall you did good for your first blog

    ReplyDelete
  11. Good Job! i like how you used different colours and changed the font size and i like the picture. next time try to find a link.

    ReplyDelete
  12. Good job, the picture of the number chart is good and it was very organized. Well done.

    ReplyDelete
  13. This comment has been removed by the author.

    ReplyDelete
  14. Good job Kaecee! Your post is neat and organized. I like how you made the headings larger and a different color, your picture was nice also. Next time I suggest you find a video and a link to make your post better.

    ReplyDelete
  15. Good Job Kaecee !
    I liked how you made the title easy to read and your work is very organized. But next time try to put a link or video. I liked the image that you put and how you highlighted he prime numbers. Anyway, Good Job !

    ReplyDelete
  16. Great Job Kaecee! I wasn't their because I had advanced math but I am sur ethat you got every thing down for the day. I like your use of colors. You got pictures, so that is good. It would be better if there was a link and or video. Well every thing was good for your first time. I hope you take my suggestions to heart.

    ReplyDelete
  17. Great Job Kaecee! I like how it is very neat and very easy to read. You should put a link or video next time. If you don't know what to put it about pick one of the categories as one link,and the other as a video. I like how you used colors and made your font big when needed.
    Well overall Excellent Job!! (:

    ReplyDelete
  18. Great job Kaecee! Nice job on this post. I think the picture is great and that everything is neat but try to put a link or a video next time. Other than that, everything was great and I'll be looking forward to your next post!

    ReplyDelete
  19. Great job Kaecee. I liked the coloured titles and all the information organized. It was also very simple and neat. I don't think you missed anything on what we did that day. Try to put a link and a video, and diagrams to show as examples. But great job.

    ReplyDelete
  20. Great job Kaecee. I really liked how you have organized everything. Your picture was great! For next time just try to post a video or a link. But overall great job!

    ReplyDelete
  21. Nice job Kaecee!You put down everything on what we did but next time try to find or put a link or video.Overall everything was great.Keep up the good work!

    ReplyDelete
  22. Nce job Kaecee i reallly like it you did it good !

    ReplyDelete
  23. Good job kaecee you did vary good like all that you did. But put a link

    ReplyDelete
  24. This comment has been removed by the author.

    ReplyDelete
  25. Good Job Kaecee! The post was very neat and very well. This comment is really late but everything was done well, but next time try to put a video and link. Very good for your first blog!

    ReplyDelete
  26. The chart was cool and you should have put a video or link.

    ReplyDelete