Author Topic: The infinite list of prime numbers...  (Read 7373 times)

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Offline Kcronos

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Re: The infinite list of prime numbers...
« Reply #15 on: January 02, 2008, 07:58:22 pm »
Prime number:  n^2-1

prove it wrong!


(If you know the answer, or look on wikipedia, don't answer!  I know its been discussed in mathematics before...)
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Offline tomasgaquino

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Re: The infinite list of prime numbers...
« Reply #16 on: January 02, 2008, 08:09:35 pm »
3^2-1 = not prime.  ;D

Offline blitzonator

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Re: The infinite list of prime numbers...
« Reply #17 on: January 03, 2008, 12:17:35 pm »
4 6 8 9 10 12 ...

No no, your doing it wrong, those are even numbers, this is what you do.

1,3,5,6,7,9,11,13,15,17,19,21,23,22,24,26,28,210,211,212,213

those arn't prime,
you /fail at life

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6, 28...

Isn't it all the devisions added up to it?
E.x:
3 / 6 = 2
2 / 6 = 3
1 / 6 = 6

3 + 2 + 1 = 6

6! Prime!

Offline SpecialBrownies

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Re: The infinite list of prime numbers...
« Reply #18 on: January 03, 2008, 03:23:37 pm »
4 6 8 9 10 12 ...

No no, your doing it wrong, those are even numbers, this is what you do.

1,3,5,6,7,9,11,13,15,17,19,21,23,22,24,26,28,210,211,212,213

those arn't prime,
you /fail at life

Jokes jokes jokes, humor humor humor.

6, 28...

Isn't it all the devisions added up to it?
E.x:
3 / 6 = 2
2 / 6 = 3
1 / 6 = 6

3 + 2 + 1 = 6

6! Prime!

Let's hope you're too young to have learned what a prime number is. If not, I'm sorry for your loss.
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Offline Kidsoldier

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Re: The infinite list of prime numbers...
« Reply #19 on: February 03, 2008, 08:46:19 pm »
Err No... A Prime number is a number that can only be multiplied by 1 and itself.
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Offline Yannick

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Re: The infinite list of prime numbers...
« Reply #20 on: February 04, 2008, 08:35:51 am »
Actually divided by itself and 1  ;D


5x2-1= 9, but 9 isn't prime because:
9/1=9
9/3=3
9/9=1

It is dividable by 3 too.

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Offline jmrdex

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Re: The infinite list of prime numbers...
« Reply #21 on: April 04, 2008, 04:43:14 pm »
Actually divided by itself and 1  ;D


5x2-1= 9, but 9 isn't prime because:
9/1=9
9/3=3
9/9=1

It is dividable by 3 too.
n^x means "n to the x power" not "n times x"

Offline Neoskel

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Re: The infinite list of prime numbers...
« Reply #22 on: April 04, 2008, 04:57:44 pm »
Actually divided by itself and 1  ;D


5x2-1= 9, but 9 isn't prime because:
9/1=9
9/3=3
9/9=1

It is dividable by 3 too.
n^x means "n to the x power" not "n times x"

5^2-1=25-1=24

24 is not a prime number. Are you sure thats the right formula Kcronos?