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**Zeroface****Member**- Registered: 2006-12-29
- Posts: 11

here is a puzzle:

18, 7, 3, 9, 56, 12, 350, 67, 831, 36, 645, 34, 78, 13

No it's not a sequence that you finish. Eliminate all numbers that are not connected to a certain other number in the list.

0 can be nothing and something.

0

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**Ricky****Moderator**- Registered: 2005-12-04
- Posts: 3,791

I could find perfectly valid reasons which differ from yours. Heck, I say that all the evens are connected. Perhaps you need to specify a little more about what you mean by "connected".

"In the real world, this would be a problem. But in mathematics, we can just define a place where this problem doesn't exist. So we'll go ahead and do that now..."

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**MathsIsFun****Administrator**- Registered: 2005-01-21
- Posts: 7,619

So, there is a "master" number somewhere in the list, and we should eliminate all numbers not connected to it?

"The physicists defer only to mathematicians, and the mathematicians defer only to God ..." - Leon M. Lederman

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**Toast****Real Member**- Registered: 2006-10-08
- Posts: 1,321

Well, so far I think the master number is 67, because it is neither a multiple or factor of any other number. What do you think?

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**Zeroface****Member**- Registered: 2006-12-29
- Posts: 11

Alright then, let me make it a little more clear. Study every single number in the list indepentely. This is the the way to come to your answer.

0 can be nothing and something.

0

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**rida****Real Member**- Registered: 2006-09-25
- Posts: 839

I think the master number is 3 because a lot of them are multiples of 3 so you eliminate the numbers that aren't multiples of 3.

Dreams don't come true, you gotta make them come true.

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**Simon****Member**- Registered: 2006-06-06
- Posts: 41

For the record, I beleive the there are two numbers to eliminate - 67 & 34.

All the rest are divisable - or can be divided by - one or more of the others.

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