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What's the next number?

Forums: Riddles
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kev
 
Reply Wed 29 Nov, 2006 12:09 am
2 5 26 what is the next number and why?
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Type: Discussion • Score: 1 • Views: 814 • Replies: 8
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NickFun
 
  1  
Reply Wed 29 Nov, 2006 12:32 am
I'm sure it has something to do with 27, like 2 7. It's a logical prgression.
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lmur
 
  1  
Reply Wed 29 Nov, 2006 12:41 am
Re: What's the next number?
kev wrote:
2 5 26 what is the next number and why?


I think the progression is (n^2 + 1) eg 5 = 2^2 +1, 26 is 5^2 +1 and so on.

If I'm right, the next number is 677.
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Lord Ellpus
 
  1  
Reply Wed 29 Nov, 2006 12:50 am
Yep.
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kev
 
  1  
Reply Wed 29 Nov, 2006 01:05 am
Re: What's the next number?
lmur wrote:
kev wrote:
2 5 26 what is the next number and why?


I think the progression is (n^2 + 1) eg 5 = 2^2 +1, 26 is 5^2 +1 and so on.

If I'm right, the next number is 677.


Imur my mathematical knowledge is a bit basic like I can count my wages to see if I've been diddled, but it falls short of calculating the likely time the universe has left before it ceases to exist.

Any simpler explanation?

And Lord Hellpus. Yep? If your maths is any better than mine I'll show my arse in Woolworths window. Yep indeed Very Happy
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lmur
 
  1  
Reply Wed 29 Nov, 2006 01:35 am
Re: What's the next number?
kev wrote:
lmur wrote:
kev wrote:
2 5 26 what is the next number and why?


I think the progression is (n^2 + 1) eg 5 = 2^2 +1, 26 is 5^2 +1 and so on.

If I'm right, the next number is 677.


Imur my mathematical knowledge is a bit basic like I can count my wages to see if I've been diddled, but it falls short of calculating the likely time the universe has left before it ceases to exist.

Any simpler explanation?

And Lord Hellpus. Yep? If your maths is any better than mine I'll show my arse in Woolworths window. Yep indeed Very Happy


I'll try..

The next number in the sequence is the last number, multiplied by itself and then adding one.

So the number you're looking for is (26x26) + 1 = 677.

Hope that helps!
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Lord Ellpus
 
  1  
Reply Wed 29 Nov, 2006 01:48 am
Re: What's the next number?
kev wrote:
lmur wrote:
kev wrote:
2 5 26 what is the next number and why?


I think the progression is (n^2 + 1) eg 5 = 2^2 +1, 26 is 5^2 +1 and so on.

If I'm right, the next number is 677.


Imur my mathematical knowledge is a bit basic like I can count my wages to see if I've been diddled, but it falls short of calculating the likely time the universe has left before it ceases to exist.

Any simpler explanation?

And Lord Hellpus. Yep? If your maths is any better than mine I'll show my arse in Woolworths window. Yep indeed Very Happy


Actually, Maths is one of my strong points.

I was agreeing with Imur. I think he may have confused things by using the ^ symbol, instead of using the word "squared", which means multiplied by itself.

26 squared, plus 1.

I'll look out for you in my local Woolies, shall I?:wink:
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thoh13
 
  1  
Reply Wed 29 Nov, 2006 06:43 pm
the next number can also be 65
the series can be 9n^2-24n+17 and 9(4)^2-24(4)+17=65
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markr
 
  1  
Reply Wed 29 Nov, 2006 10:29 pm
There are an infinite number of possibilities. Pick a number and a polynomial can be constructed to generate the sequence.

Another "simple" one is 173 (times 7 minus 9). I like 677.
0 Replies
 
 

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