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MathMikie
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03 Sep 2008, 9:32 am

hi really like maths all maths it is such a brilliant subject my favorite parts of maths are differential equations and linear algebra i am a student at college i am doing A LEVL maths but i also enjoy doing extra maths sometimes in my spare time



tomamil
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03 Sep 2008, 9:35 am

become a researcher and go after phd, then :)


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ghouna
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03 Sep 2008, 9:43 am

WAOW!! Then we are going to be best friend, i also do math in my spare time!! Love it!! ! (especially equation!)


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03 Sep 2008, 9:45 am

Good for you! I enjoy math as well, I'm taking calculus in college at the moment, and I'm glad you like it as well though you're a good deal more advanced than myself. :wink:


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MathMikie
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03 Sep 2008, 1:59 pm

an interesting problem. a perfect number is a number whose factors add to that number its self including 1 and excluding the number its self the first perfect number is 6 because the factors of 6 are 1,2 and 3 and they add to 6 what is the next perfect number after 6?



Eggman
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03 Sep 2008, 2:49 pm

yo



Emen
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03 Sep 2008, 3:35 pm

Is it 28?



richie
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03 Sep 2008, 3:51 pm

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To WrongPlanet!! !Image

Emen wrote:
Is it 28?

Yes....
for n = 2: 2^1(2^2 − 1) = 6
for n = 3: 2^2(2^3 − 1) = 28
for n = 5: 2^4(2^5 − 1) = 496
for n = 7: 2^6(2^7 − 1) = 8128.
http://en.wikipedia.org/wiki/Perfect_number
http://www.research.att.com/~njas/sequences/A000396
http://en.wikipedia.org/wiki/Mersenne_prime


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Apatura
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03 Sep 2008, 3:57 pm

Welcome :). I love numbers but have never been good at math.



MathMikie
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03 Sep 2008, 4:32 pm

the answer is 28 ok try this problem.

I HAVE A MATRIX 1 -2 1ST ROW and -2 1 2nd row what are the egienvalues and the egienvectors