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

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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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 86,776

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.Of course that result can be rigorously obtained, but who cares?Combinatorics is Algebra and Algebra is Combinatorics.**

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**phrontister****Real Member**- From: The Land of Tomorrow
- Registered: 2009-07-12
- Posts: 3,848

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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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 86,776

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.Of course that result can be rigorously obtained, but who cares?Combinatorics is Algebra and Algebra is Combinatorics.**

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

**390****390****390****390****390**

**igloo** **myrtilles** **fourmis**

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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 86,776

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.Of course that result can be rigorously obtained, but who cares?Combinatorics is Algebra and Algebra is Combinatorics.**

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

**416****416****416****416****416**

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

**igloo** **myrtilles** **fourmis**

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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 86,776

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

Of course that result can be rigorously obtained, but who cares?

Combinatorics is Algebra and Algebra is Combinatorics.

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

**442****442****442****442****442**

**igloo** **myrtilles** **fourmis**

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**MathsIsFun****Administrator**- Registered: 2005-01-21
- Posts: 7,535

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

468

Proverbs** 4** (choose wisdom)

**6**Forsake her not, and she shall preserve thee: love her, and she shall keep thee** 8**Exalt 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

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

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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 86,776

481

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

But, the sum of the digits is 13.

Of course that result can be rigorously obtained, but who cares?

Combinatorics is Algebra and Algebra is Combinatorics.

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

**494****494****494****494****494**

**igloo** **myrtilles** **fourmis**

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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 86,776

507

The sum of 8 different squares:

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

Of course that result can be rigorously obtained, but who cares?

Combinatorics is Algebra and Algebra is Combinatorics.

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

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

**igloo** **myrtilles** **fourmis**

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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 86,776

546

It is the mean of 2 happy numbers, amazing!

Of course that result can be rigorously obtained, but who cares?

Combinatorics is Algebra and Algebra is Combinatorics.

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

**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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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 86,776

572

Sum of eight squares:

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

Of course that result can be rigorously obtained, but who cares?

Combinatorics is Algebra and Algebra is Combinatorics.

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

**585****585****585****585****585**

**igloo** **myrtilles** **fourmis**

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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 86,776

598

Sum of 6 cubes.

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

Of course that result can be rigorously obtained, but who cares?

Combinatorics is Algebra and Algebra is Combinatorics.

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

**611****611****611** = 102 + 204 + 305**611****611**

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

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

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

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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 86,776

637 = 5^3 + 8^3

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

Of course that result can be rigorously obtained, but who cares?

Combinatorics is Algebra and Algebra is Combinatorics.

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

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

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