Math Is Fun Forum
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#526 2010-05-28 07:49:17
- phrontister
- Real Member
- From: The Land of Tomorrow
- Registered: 2009-07-12
- Posts: 4,879
Re: Add 13 more and post it forever.
Hi Bobby,
Yes, I fully agree. 
I was speaking sideways there..."downgraded" was totally tongue-in-cheek. As a Real Member I'd never (>sniff<) be able to revel in the kind of glory that Tigeree and Jane enjoy as LEGENDARY Members. BUT I'd get to PM! I'll get over foregoing the euphoria of achieving that highest post-ranked status.
"The good news about computers is that they do what you tell them to do. The bad news is that they do what you tell them to do." - Ted Nelson
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#527 2010-05-28 13:43:35
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Add 13 more and post it forever.
You are legendary in my book. And that is all you need.
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
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#528 2010-05-28 15:30:52
- Tigeree
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- Registered: 2005-11-19
- Posts: 13,883
Re: Add 13 more and post it forever.
6864
People don't notice whether it's winter or summer when they're happy.
~ Anton Chekhov
Cheer up, emo kid.
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#529 2010-05-28 15:35:41
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Add 13 more and post it forever.
The string 6877 first appears at:
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
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#530 2010-05-28 15:43:45
- Tigeree
- Member
- Registered: 2005-11-19
- Posts: 13,883
Re: Add 13 more and post it forever.
6890 I'm sick of these thousands, I want five numbers!
People don't notice whether it's winter or summer when they're happy.
~ Anton Chekhov
Cheer up, emo kid.
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#531 2010-05-28 16:47:03
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Add 13 more and post it forever.
6903
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
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#532 2010-05-28 18:53:18
- ZHero
- Real Member
- Registered: 2008-06-08
- Posts: 1,889
Re: Add 13 more and post it forever.
6916
Consider a Triangle with vertices (6, 9) (9, 1) (1, 6).
Perimeter = √34 + √73 + √89
34 + 73 + 89 = 196
196 = (13+1)[sup]2[/sup]
169 = 13[sup]2[/sup]
961 = 31[sup]2[/sup]
Last edited by ZHero (2010-05-28 19:09:06)
If two or more thoughts intersect, there has to be a point!
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#533 2010-05-29 02:55:35
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Add 13 more and post it forever.
6929
With the phrontister adjustment!
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
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#534 2010-05-29 13:43:14
- phrontister
- Real Member
- From: The Land of Tomorrow
- Registered: 2009-07-12
- Posts: 4,879
Re: Add 13 more and post it forever.
"The good news about computers is that they do what you tell them to do. The bad news is that they do what you tell them to do." - Ted Nelson
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#535 2010-05-29 13:58:18
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Add 13 more and post it forever.
6955
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
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#536 2010-05-30 04:15:35
- ZHero
- Real Member
- Registered: 2008-06-08
- Posts: 1,889
Re: Add 13 more and post it forever.
If two or more thoughts intersect, there has to be a point!
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#537 2010-05-30 05:19:15
- phrontister
- Real Member
- From: The Land of Tomorrow
- Registered: 2009-07-12
- Posts: 4,879
Re: Add 13 more and post it forever.
Hi Bobby,
In post #533 it looks like all four square root numbers are 2 less than what they should be.
"The good news about computers is that they do what you tell them to do. The bad news is that they do what you tell them to do." - Ted Nelson
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#538 2010-05-30 05:34:13
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Add 13 more and post it forever.
Will delete my post above this one so that we can realign the answers.
6994
All adjusted. Modified other post.
Sorry for the inconvenience. Thanks for spotting that.
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
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#539 2010-05-30 05:56:55
- phrontister
- Real Member
- From: The Land of Tomorrow
- Registered: 2009-07-12
- Posts: 4,879
Re: Add 13 more and post it forever.
Hi Bobby,
About to go to bed...been watching the French Open and also been adjusting my program as it failed to pick up the solution if its position wasn't the first appearance of the search number. Fixed now...and runs at the same speed as before.
If I hadn't corrected that error my program wouldn't have found the next answer, as 7007 occurs three times before position 7007.
"The good news about computers is that they do what you tell them to do. The bad news is that they do what you tell them to do." - Ted Nelson
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#540 2010-05-30 05:58:51
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Add 13 more and post it forever.
Hi phrontister;
I think I have found some other solutions to your 7007. Check these.
7020
See you when you get back.
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
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#541 2010-05-30 09:29:54
- ZHero
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- Registered: 2008-06-08
- Posts: 1,889
Re: Add 13 more and post it forever.
Last edited by ZHero (2010-05-30 09:58:58)
If two or more thoughts intersect, there has to be a point!
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#542 2010-05-30 12:20:18
- phrontister
- Real Member
- From: The Land of Tomorrow
- Registered: 2009-07-12
- Posts: 4,879
Re: Add 13 more and post it forever.
Hi Bobby,
I'd also found those other four solutions for 7007, but I chose 28666 because I could easily get √169 = 13 from its digits (something I've tried to do with this type of solution) while maintaining the digit order. The others seemed to be too difficult for that. I always like to have a reference to #13, as that's what this thread's about.
I probably didn't explain myself clearly enough about not finding other solutions for 7007, but I was referring to other appearances of 7007 within the sqrt of the test number. The sqrt of 28666 yields 7007 in three positions prior to position #7007, and my previous program missed seeing the solution in such cases.
Last edited by phrontister (2010-05-30 13:25:29)
"The good news about computers is that they do what you tell them to do. The bad news is that they do what you tell them to do." - Ted Nelson
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#543 2010-05-30 13:24:28
- ZHero
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- Registered: 2008-06-08
- Posts: 1,889
Re: Add 13 more and post it forever.
Last edited by ZHero (2010-05-30 20:04:29)
If two or more thoughts intersect, there has to be a point!
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#544 2010-05-30 22:03:01
- phrontister
- Real Member
- From: The Land of Tomorrow
- Registered: 2009-07-12
- Posts: 4,879
Re: Add 13 more and post it forever.
Last edited by phrontister (2010-05-30 22:04:38)
"The good news about computers is that they do what you tell them to do. The bad news is that they do what you tell them to do." - Ted Nelson
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#545 2010-05-30 22:05:14
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Add 13 more and post it forever.
7085
8 + 5 + 7*0 = 13
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
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#546 2010-05-30 22:53:32
- ZHero
- Real Member
- Registered: 2008-06-08
- Posts: 1,889
Re: Add 13 more and post it forever.
If two or more thoughts intersect, there has to be a point!
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#547 2010-05-31 05:23:42
- phrontister
- Real Member
- From: The Land of Tomorrow
- Registered: 2009-07-12
- Posts: 4,879
Re: Add 13 more and post it forever.
"The good news about computers is that they do what you tell them to do. The bad news is that they do what you tell them to do." - Ted Nelson
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#548 2010-05-31 09:06:03
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Add 13 more and post it forever.
7124
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
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#549 2010-05-31 21:10:07
- phrontister
- Real Member
- From: The Land of Tomorrow
- Registered: 2009-07-12
- Posts: 4,879
Re: Add 13 more and post it forever.
Last edited by phrontister (2010-05-31 21:15:55)
"The good news about computers is that they do what you tell them to do. The bad news is that they do what you tell them to do." - Ted Nelson
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#550 2010-05-31 21:20:46
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Add 13 more and post it forever.
7150
7 + 5 + 1 + 0 = 13
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
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