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  Discussion about math, puzzles, games and fun.   Useful symbols: √ ∞ ≠ ≤ ≥ ≈ ⇒ ∈ Δ θ ∴ ∑ ∫ π -

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Topic review (newest first)

MathsIsFun
2005-06-12 17:25:02

Way cool, jaz. Neat and simple.

Ummm ... don't just drop a pearl of wisdom in passing ... join up and give us a few (not TOO hard) puzzles, or help out at the "Help Me" forum. (Though things may be quietening down here soon, as Summer Holidays are nearly upon us!)

jaz
2005-06-12 09:39:49

just came here while googling...
so, a formal proof:
p be such a prime number,
=> p+1 = n^2, where n is natural =>
=> p = n^2 - 1
=> p = (n-1)(n+1), but hey, p is prime!
=> that can only be if n-1 = 1, that is p = 3
=> only one such prime number

MathsIsFun
2005-05-28 16:10:14

"what is the number of prime numbers between one and a million that become a perfect square if you add 1 to them?"

Surely the number 3 qualifies ... add 1 you get 4 which is 2*2

So the answer is 1, isn't it?

cheer99
2005-05-28 16:05:59

Ellie wrote:

lol! More like your trying to get the ansewer for this weeks Lenny Conundrem on neopets.com!

I'm much rather have the extra 10 points on the exam, then try and win pretty much nothing on neopets.com. Can't help it if my math teacher used that question as well.

Anywho...just so the admin who helped with the question knows..the answer is 0.

cheer99
2005-05-28 16:03:29

Ellie-We had that in our math class as well...thank you very much!

MathsIsFun
2005-05-26 07:41:42

Is that right? LOL !!

Do I get a prize for answering it, then?

Ellie
2005-05-26 07:03:02

cheer99 wrote:

Thanks a bunch! I really appreciate it. We get an extra 10 points on the final exam if we get it right! College Math is so much harder then high school math!

lol! More like your trying to get the ansewer for this weeks Lenny Conundrem on neopets.com!

MathsIsFun
2005-05-25 16:30:31

Like this? No, sorry.

http://images.neopets.com/pets/kacheek_blue_baby.gif

a mad physicist
2005-05-25 09:04:06

neopets?

MathsIsFun
2005-05-23 22:50:18

Hello "ppl"

There was only 2 minutes between your first and last post ... this is a forum,  not a phone conversation smile

When you post a question here you need to give people a chance to come on the forum, read your message and reply. This can be many hours to days sometimes, but we will do the best we can to help.

So, can you tell us what your problem is with division - is it long division?

Have you tried reading our pages on it starting here

And you can practice with these worksheets - there are normal division and long division worksheets, and you can view them with or without answers.

ppl
2005-05-23 21:41:09

ppl wrote:

ppl wrote:

Help me im stuck on the gcse topic and i really want to be a gr8 mathmatician. its so hard for me because im have a huge reputation as a i math brain but i just can do divison plzzzzzzz help me!!!!!!!!!!!!

sorry i ment CANT and i aint no novice im goin to recive the highest award in my maths class a ************8 see beat ne if u can moo ha ha ha

fine then dont help me u r all evil...... i just goin to go in my corner and cry!! sob sob sniff

ppl
2005-05-23 21:40:07

ppl wrote:

Help me im stuck on the gcse topic and i really want to be a gr8 mathmatician. its so hard for me because im have a huge reputation as a i math brain but i just can do divison plzzzzzzz help me!!!!!!!!!!!!

sorry i ment CANT and i aint no novice im goin to recive the highest award in my maths class a ************8 see beat ne if u can moo ha ha ha

ppl
2005-05-23 21:39:06

Help me im stuck on the gcse topic and i really want to be a gr8 mathmatician. its so hard for me because im have a huge reputation as a i math brain but i just can do divison plzzzzzzz help me!!!!!!!!!!!!

insomnia
2005-05-23 18:09:26

Yes, ok. If you want to believe that fine with us. Who are we to destroy your fragile pysche.

Zach
2005-05-23 02:23:51

Riiiiiight.

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