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#51 Re: Dark Discussions at Cafe Infinity » I am going to climb Everest » 2016-04-27 16:25:28
Mmm....do many people die from sailing round the world?
That she is a she.
What made you think I was a guy bobbym?
#52 Re: Dark Discussions at Cafe Infinity » I am going to climb Everest » 2016-04-27 16:14:09
I have done some research in case anyone else is interested in climbing it.
It's going to set you back something like £40, 000.
You need to;
Go on a climbing course and then practice
Go on an ice climbing course and then climb a lesser mountain
Do a load of training before attempting the ascent
Also you should know;
70% of attempts are unsuccessful and for every 10 climbers that make the ascent 1 will die trying to
That is a high risk! I'm quite scared now..................................................... Oh well!
#53 Re: Dark Discussions at Cafe Infinity » I am going to climb Everest » 2016-04-27 14:54:56
I'm a girl by the way. I think everyone keeps thinking I'm a guy. That Nehushtan was so rude to me bobbym. I don't think he would have been if he knew I was a lady. Although I am assuming he/she is a guy. Could have been a cat fight......... Meow!
#54 Re: Maths Is Fun - Suggestions and Comments » Prime Numbers Activity » 2016-04-27 14:26:37
Better to start at the beginning isn't it.......... I think it should make a noise when you find a prime.
#55 Re: Dark Discussions at Cafe Infinity » I am going to climb Everest » 2016-04-27 14:16:26
England.
#56 Re: Euler Avenue » Was mathematics invented or discovered? » 2016-04-27 14:09:54
The word 'Math' is invented. That's why you can say it in different languages and it doesn't matter. However the math itself was discovered because it is highly unlikely that some guy in China and some guy in England invented the same mathematics. They could have used different symbols.......... but it would have been the same mathematics.
If mathematics was invented to cope with sensory information linking it to reality. I would just like to say that all sensory information is real. Just because you could be dreaming doesn't mean you are.
#57 Re: Dark Discussions at Cafe Infinity » I am going to climb Everest » 2016-04-27 13:16:29
I have changed my mind. I think climbing mount everest is God's will for my life. I googled how do we know what God wants us to do and it said the holy spirit would pacify and encourage us when we are leaning in the right direction and I get so excited at the prospect of climbing mount everest. I know there is a God because even when no one is around I never feel alone, ever since I was a child this has been true.
#58 Re: Dark Discussions at Cafe Infinity » I am going to climb Everest » 2016-04-27 08:40:16
I have decided not to climb mount everest. If I was the last person on earth and I'm sitting on a beach. It's just me and God, if there is one. There is a bunch of cliffs behind me. I could climb them to see if I can get to the top without dying but I don't because I'm not stupid. And if climbing mountains is just to impress people then that is stupid as well. I am going to buy some fish. I love watching the ocean, much safer!
#59 Re: This is Cool » A New Way Of Finding If "p" Is Composite. » 2016-04-25 04:32:44
p=any number ending in 3
check p is not a square
where a+b is a factor and a-b is another factor
Number ending in 3: factors end in 1 and 3, or 7 and 9. Times by 27 factors now end in 1 and 1.
f=10c+1 L=10d+1
b=(10c+1-10d-1)/2=5(c-d)
#60 Re: Dark Discussions at Cafe Infinity » I am going to climb Everest » 2016-04-25 03:04:17
Because it's a meaningful accomplishment, because it's there or just to see if you can do it!
#61 Re: Guestbook » Be like Bill » 2016-04-24 19:54:35
(Man going through post) 'Bill.... Bill.... Bill..... William!'
#62 Re: Guestbook » For bobbym » 2016-04-24 19:34:58
Looks like someone you could really talk to and he'd just go Hmmmm!
#63 Dark Discussions at Cafe Infinity » I am going to climb Everest » 2016-04-24 19:16:52
- Primenumbers
- Replies: 48
My mental health nurse asked me to have a good think about what I want to do. So I come across this website: ' 7 Strange Questions That Help You Find Your Life Purpose' and one of the questions was, If you knew you were going to die one year from today, what would you do and how would you want to be remembered? And I realised I would want to climb Mount Everest, not that this is even possible in a year I don't think. I can do it because I get quite a lot of sickness benefit probably for the rest of my life and I have no other commitments. So I can be totally focused on becoming a mountain climber.
#64 Re: Dark Discussions at Cafe Infinity » Any Fellow Smokers? » 2016-04-24 18:58:53
I have thought of a way to quit smoking. I am going to go on an expedition for 3 days without any cigarettes. Preferably on my own because I'll probably be in a bad mood!
#65 Re: This is Cool » Twin Prime Proof » 2016-04-23 01:19:49
Thanks googol!
Welcome to the forum!
You're right I don't think it proves anything yet.
#66 Re: This is Cool » A New Way Of Finding If "p" Is Composite. » 2016-04-23 01:15:38
For a prime the only factors will be 1 and itself, so the only occurrence for a squared minus b squared will be when a=(p+1)/2 and b=(p-1)/2. For a composite b will be less than this.
#67 Re: This is Cool » A New Way Of Finding If "p" Is Composite. » 2016-04-23 00:39:04
I don't really know how to do this. 4k+2 will always be even so n will be any odd no. My formula doesn't work for even no.'s. So n has factors f and L where a=(f+L) /2 and b=(f-L) /2. For a prime the only factors will be 1 and itself, so the only occurrence for a squared minus b squared will be when a=(p+1)/2 and b=(p-1)/2. For a composite b will be less than this.
#68 Re: This is Cool » A New Way Of Finding If "p" Is Composite. » 2016-04-22 23:27:03
Of course p does have those possible squares. But ONLY those. To see if p is composite, test all values for b where b is greater than 1and smaller than (p - 1)/2.
#69 This is Cool » Twin Prime Proof » 2016-04-22 21:46:42
- Primenumbers
- Replies: 2
To generate prime numbers;
A= All primes apart from 2 multiplied together up to prime x.
prime when <(the prime just above x) squared and >1This is because A is factorable by all possible factors apart from 2, and
isn't. Also is factorable by 2 and A isn't. The remainders from for primes up to x carry to the answer. A is multiplied by all odd no.'s so is odd and is even, generating an odd no. with no factors <itself other than 1.This concept is useful when trying to prove that there are an infinite number of twin primes;
A= All primes apart from 2 multiplied together up to prime x.
p= prime>x
r=p+1
m= any odd integer
I.e. remainder for 7 for ==1
=2
=4
=1
=2
=4
=1............
So when z is a prime it is not a composite so the remainder 1 for other primes <z has not repeated itself. So
will not be factorable by primes <p and will not be factorable by primes<p but will be factorable by 2.Therefore
and generates twin primes, just so long as they = a no. <(the prime just above x) squared and are >1.Example:
A=105
p=13
r=14
m=157
#70 Re: This is Cool » A New Way Of Finding If "p" Is Composite. » 2016-04-22 21:07:29
Sorry, this theorem only works with ODD numbers. So p is odd and a is either odd or even and b is the opposite.
Another way of proving p is prime is;
only when a-b=1So add possible to p and see if it = a square.
(a+b) and (a-b) will be factors
This is because for any odd Non-Prime that has a factor of >1, it can be produced with the below formula;
I can prove it
x = (f + L)/2
y = (f - L)/2 therefore
minus the two and it = fL which are the two factors....
And x - y = ((f + L)/2) - ((f - L)/2) = L which must be >1 for p to Not be, Prime or 1.
#71 Re: Dark Discussions at Cafe Infinity » Forum Dead? » 2016-03-17 08:06:18
Happy Birthday for June.
#72 Dark Discussions at Cafe Infinity » Any Fellow Smokers? » 2016-03-17 06:52:46
- Primenumbers
- Replies: 8
Hello everybody. I am a smoker and was wondering if there were any fellow smokers out there.......................?
#73 Re: Dark Discussions at Cafe Infinity » Forum Dead? » 2016-03-17 06:33:16
Can I ask how old you are bobbym?
#74 Re: Dark Discussions at Cafe Infinity » crème de la crème » 2016-03-17 06:12:32
93. Me!
#75 Re: Dark Discussions at Cafe Infinity » Happy Pi Day! » 2016-03-17 05:51:32
Actually, people often call her ugly, she is fat and black.
I think bobbym was just commenting on this.