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#26 2010-02-01 11:44:37

John E. Franklin
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Registered: 2005-08-29
Posts: 3,562

Re: Add 13 more and post it forever.

Neat !  Here's a wacky one:
338
338
338 = 19.5 x 19.5 - (6.5 x 6.5)
338
338


igloo myrtilles fourmis

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#27 2010-02-01 14:47:33

bobbym
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From: Bumpkinland
Registered: 2009-04-12
Posts: 82,980

Re: Add 13 more and post it forever.

351 Yikes!! Talk about unholy.

6^2 + 6^2 + 6^2 + 9^2 + 9^2 + 9^2

and 3 + 5 + 1 = 9


In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.

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#28 2010-02-01 15:46:04

phrontister
Real Member
From: The Land of Tomorrow
Registered: 2009-07-12
Posts: 3,819

Re: Add 13 more and post it forever.

364 = 111111 in base 3


"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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#29 2010-02-02 07:44:43

bobbym
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From: Bumpkinland
Registered: 2009-04-12
Posts: 82,980

Re: Add 13 more and post it forever.

377

Sum of 2 nice squares.

4^2 + 19^2 = 377 and 11^2 + 16^2 = 377


In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.

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#30 2010-02-03 06:04:59

John E. Franklin
Member
Registered: 2005-08-29
Posts: 3,562

Re: Add 13 more and post it forever.

390
390
390
390
390


igloo myrtilles fourmis

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#31 2010-02-03 16:30:21

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 82,980

Re: Add 13 more and post it forever.

403

Interesting 13 * 31 = 403

7^2 + 7^2 + 7^2 + 16^2 = 403


In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.

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#32 2010-02-04 10:58:48

John E. Franklin
Member
Registered: 2005-08-29
Posts: 3,562

Re: Add 13 more and post it forever.

416
416
416
416
416
Note the post #32 is the multiplier.  32 times 13 is 416


igloo myrtilles fourmis

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#33 2010-02-04 14:34:18

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 82,980

Re: Add 13 more and post it forever.

Yes, good to notice that! Amazingly, the next one 429 is 13 times the post # also.


In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.

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#34 2010-02-05 07:51:00

John E. Franklin
Member
Registered: 2005-08-29
Posts: 3,562

Re: Add 13 more and post it forever.

442
442
442
442
442


igloo myrtilles fourmis

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#35 2010-02-05 09:03:21

MathsIsFun
Administrator
Registered: 2005-01-21
Posts: 7,534

Re: Add 13 more and post it forever.

455: The year the Ostrogoths  conquer Pannonia and Dalmatia (according to Wikipedia).

(Sorry, noemi, I deleted your post because it broke the chain.)


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

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#36 2010-02-05 09:26:12

noemi
Member
Registered: 2010-01-07
Posts: 2,333

Re: Add 13 more and post it forever.

468 

Proverbs 4 (choose wisdom)
6Forsake her not, and she shall preserve thee: love her, and she shall keep thee
8Exalt her, and she shall promote thee: she shall bring thee to honour, when thou dost embrace her.

it's ok MathsIsFun.. sorry for taking the liberty smile

Last edited by noemi (2010-02-05 09:28:54)

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#37 2010-02-05 10:43:31

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 82,980

Re: Add 13 more and post it forever.

481

This one is not the sum of any number of positive cubes, incredible!

But, the sum of the digits is 13.


In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.

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#38 2010-02-05 10:54:25

John E. Franklin
Member
Registered: 2005-08-29
Posts: 3,562

Re: Add 13 more and post it forever.

494
494
494
494
494


igloo myrtilles fourmis

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#39 2010-02-05 13:39:22

bobbym
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From: Bumpkinland
Registered: 2009-04-12
Posts: 82,980

Re: Add 13 more and post it forever.

507

The sum of 8 different squares:

2^2 + 4^2 + 5^2 + 6^2 + 7^2 + 9^2 + 10^2 + 14^2 = 507


In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.

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#40 2010-02-05 14:16:53

John E. Franklin
Member
Registered: 2005-08-29
Posts: 3,562

Re: Add 13 more and post it forever.

520
520
520=(2)(2)(2)(5)(13)
520
520


igloo myrtilles fourmis

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#41 2010-02-06 07:44:51

quittyqat
Member
Registered: 2009-04-08
Posts: 1,213

Re: Add 13 more and post it forever.

533


I'll be here at least once every month. XP

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#42 2010-02-06 13:50:25

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 82,980

Re: Add 13 more and post it forever.

546

It is the mean of 2 happy numbers, amazing!


In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.

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#43 2010-02-06 13:57:14

John E. Franklin
Member
Registered: 2005-08-29
Posts: 3,562

Re: Add 13 more and post it forever.

559
559
559=(13)(43)
559
559

Last edited by John E. Franklin (2010-02-06 13:57:57)


igloo myrtilles fourmis

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#44 2010-02-07 01:13:20

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 82,980

Re: Add 13 more and post it forever.

572

Sum of eight squares:

1^2 + 2^2 + 3^2 + 4^2 + 5^2 + 6^2 + 15^2 + 16^2 = 572


In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.

Offline

#45 2010-02-07 05:09:11

John E. Franklin
Member
Registered: 2005-08-29
Posts: 3,562

Re: Add 13 more and post it forever.

585
585
585
585
585


igloo myrtilles fourmis

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#46 2010-02-07 14:36:16

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 82,980

Re: Add 13 more and post it forever.

598

Sum of 6 cubes.

1^3 + 1^3 + 4^3 + 4^3 + 5^3 + 7^3 = 598


In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.

Offline

#47 2010-02-08 04:51:47

John E. Franklin
Member
Registered: 2005-08-29
Posts: 3,562

Re: Add 13 more and post it forever.

611
611
611 = 102 + 204 + 305
611
611

Last edited by John E. Franklin (2010-02-08 04:52:33)


igloo myrtilles fourmis

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#48 2010-02-08 04:59:00

Devantè
Real Member
Registered: 2006-07-14
Posts: 6,400

Re: Add 13 more and post it forever.

624 = 2[sup]4[/sup] + 2[sup]5[/sup] + 2[sup]6[/sup] + 2[sup]9[/sup]

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#49 2010-02-08 05:06:13

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 82,980

Re: Add 13 more and post it forever.

637 = 5^3 + 8^3

637 = 2^3 + 2^3 + 4^3 + 5^3 + 6^3 + 6^3


In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.

Offline

#50 2010-02-08 05:08:42

Devantè
Real Member
Registered: 2006-07-14
Posts: 6,400

Re: Add 13 more and post it forever.

650 = 8[sup]3[/sup] + 2[sup]7[/sup] + 2[sup]3[/sup] + 4[sup]½[/sup]

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