Sunday, October 31, 2010

Justin

We use prime factorization for things like GCD, LCM, number of divisors, product of divisors. It makes problems easier because youre shrinking it down into powers of primes. I think we are going to use prime factorization for cryptography, but I don'r really know how.
There are multiple uses of prime factorization, though we have only gone over a few. One way we used prime factorization was to find the least common multiple, greatest common denominator, and finding how many divisors and so forth.

Finding the prime factorization is very helpful becasue it is often easier to work with smaller numbers rather than doing intense math.

I believe that cryptogrophy will use prime factorizations to help decode the problems because you may be able to find a code and be able to realize that the gcd equals one letter than the same for antoehr.

It is very important that we learn to do the prime factorization of numbers because it is used in a varitety of problems.

Blog Prompt

Jordan's computer is currently down. Thus I will be posting this week's blog prompt.

What are the different uses of prime factorization? Include some we have done in class and some that you find. Also is it related to cryptography?

Wednesday, October 20, 2010

Feroz's Blog

I feel like I've mastered quite a bit in this class, like the sieve, finding the gcd and lcm, and definitely prime factorization.

I struggled with the word problems, like "find the number the divisors of 100,000,000,000 that are perfect squares" and stuff like that. Just not to that extent.

I never really took this class seriously, and I still don't, so I should probably do homework and rework problems to improve my grade.

Sunday, October 17, 2010

DaViD

I've mastered alot in this class. The seive is easy, just takes alot of work and writing numbers. prime factorization is something that is now super easy to understand and work. I can work matrices and logs. I struggled with some of the weird word problems we had in homework, and one way i can fix my grade and fix that is possibly doing that homework more often and to the fullest extent. I will be doing amazing in this class from now on because i want the food prize EVERYTIME we cipher. amen.

Blog for 10/17

What concept do you feel like you mastered this nine weeks?
Hmm, I honestly don't think I've "mastered" any concepts this nine weeks, but I've started to get better with the whole LCM AND GCD thing

What concept did you struggle with the most? Why?
well, I have no clue actually, I'd have to go with finding prime numbers because I'd always forget one little common mistake and get the numbers wrong

What can you change this nine weeks in your study habits, etc to improve your grade?
I'd have to go with doing the homework twice I guess

Muuraaayyy

The concept I mastered is prime factorization. It was easy to begin with, but now I can go really fast and it doesn't take near as long. I get alot of the processes we learned, and I will most likely remember them because they make sense, it easy( well not easy but yea) to figure it out with some thinking. I struggled alot with logs! I will never get them! What i could do to help is perhaps go to alpha practice with shawn... and at first, i had heard that the math extra class was just to focus math club, not this. So i'm ready now. I know my study habits wil change, in fact, they could get reall, because i already focus all homework time on advanced math, so it that class gets harder, i'll really be in trouble, with that one and this one. anyway, this nine weeks was rough, but at least i can find the all the prime factors between 1 and 100. haha,