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## #76 2012-12-24 13:52:32

mathaholic
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From: Earth
Registered: 2012-11-29
Posts: 3,247

### Re: Let's make triangular numbers.

2926

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## #77 2012-12-24 21:13:34

bobbym
From: Bumpkinland
Registered: 2009-04-12
Posts: 106,389

### Re: Let's make triangular numbers.

3003 another palindrome and my favorite binomial.

In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
No great discovery was ever made without a bold guess.

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## #78 2012-12-24 21:15:58

mathaholic
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From: Earth
Registered: 2012-11-29
Posts: 3,247

### Re: Let's make triangular numbers.

3081
Multiple of 3

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## #79 2012-12-24 21:29:42

bobbym
From: Bumpkinland
Registered: 2009-04-12
Posts: 106,389

### Re: Let's make triangular numbers.

3160

In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
No great discovery was ever made without a bold guess.

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## #80 2012-12-24 22:14:12

mathaholic
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From: Earth
Registered: 2012-11-29
Posts: 3,247

### Re: Let's make triangular numbers.

3240

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## #81 2012-12-24 22:19:04

bobbym
From: Bumpkinland
Registered: 2009-04-12
Posts: 106,389

### Re: Let's make triangular numbers.

3321 = 36^2 + 45^2

In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
No great discovery was ever made without a bold guess.

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## #82 2012-12-25 12:10:29

mathaholic
Member
From: Earth
Registered: 2012-11-29
Posts: 3,247

### Re: Let's make triangular numbers.

3401
Thought it's prime.

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## #83 2012-12-25 20:45:32

bobbym
From: Bumpkinland
Registered: 2009-04-12
Posts: 106,389

### Re: Let's make triangular numbers.

3486 = 10^2 + 19^2 + 55^2

In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
No great discovery was ever made without a bold guess.

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## #84 2012-12-25 20:47:51

mathaholic
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From: Earth
Registered: 2012-11-29
Posts: 3,247

### Re: Let's make triangular numbers.

3550

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## #85 2012-12-25 20:57:53

bobbym
From: Bumpkinland
Registered: 2009-04-12
Posts: 106,389

### Re: Let's make triangular numbers.

3655 = 2(9^3) + 13^3

In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
No great discovery was ever made without a bold guess.

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## #86 2012-12-26 11:50:08

mathaholic
Member
From: Earth
Registered: 2012-11-29
Posts: 3,247

### Re: Let's make triangular numbers.

3751

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## #87 2012-12-26 19:57:03

bobbym
From: Bumpkinland
Registered: 2009-04-12
Posts: 106,389

### Re: Let's make triangular numbers.

3828=25^2+2 x 29^2+39^2

In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
No great discovery was ever made without a bold guess.

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## #88 2012-12-27 03:09:54

John E. Franklin
Member
Registered: 2005-08-29
Posts: 3,588

### Re: Let's make triangular numbers.

3916
3828 + post88 = 3916
post88 x 89 / 2 = 3916

igloo myrtilles fourmis

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## #89 2012-12-27 04:35:03

bobbym
From: Bumpkinland
Registered: 2009-04-12
Posts: 106,389

### Re: Let's make triangular numbers.

4095 = 27^2 + 2 x 31^2 + 38^2

In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
No great discovery was ever made without a bold guess.

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## #90 2012-12-27 05:14:02

John E. Franklin
Member
Registered: 2005-08-29
Posts: 3,588

### Re: Let's make triangular numbers.

4005 (skipped) and 4095
4005 + post90 = 4095
90 x 91 / 2 = 4095

igloo myrtilles fourmis

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## #91 2012-12-27 05:28:18

bobbym
From: Bumpkinland
Registered: 2009-04-12
Posts: 106,389

### Re: Let's make triangular numbers.

4186 = 28^2 + 29^2 + 31^2 + 40^2

In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
No great discovery was ever made without a bold guess.

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## #92 2012-12-27 12:33:24

mathaholic
Member
From: Earth
Registered: 2012-11-29
Posts: 3,247

### Re: Let's make triangular numbers.

4278

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## #93 2012-12-27 12:36:00

bobbym
From: Bumpkinland
Registered: 2009-04-12
Posts: 106,389

### Re: Let's make triangular numbers.

4371 = 2 x 29^2 + 33^2 + 40^2

In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
No great discovery was ever made without a bold guess.

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## #94 2012-12-27 16:34:36

mathaholic
Member
From: Earth
Registered: 2012-11-29
Posts: 3,247

### Re: Let's make triangular numbers.

4465

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## #95 2012-12-28 07:17:11

bobbym
From: Bumpkinland
Registered: 2009-04-12
Posts: 106,389

### Re: Let's make triangular numbers.

In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
No great discovery was ever made without a bold guess.

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## #96 2012-12-28 11:48:02

mathaholic
Member
From: Earth
Registered: 2012-11-29
Posts: 3,247

### Re: Let's make triangular numbers.

4656
70^2-(16^2-10)

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## #97 2012-12-28 11:52:18

bobbym
From: Bumpkinland
Registered: 2009-04-12
Posts: 106,389

### Re: Let's make triangular numbers.

4753 = 28^2 + 63^2

In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
No great discovery was ever made without a bold guess.

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## #98 2012-12-28 11:57:02

mathaholic
Member
From: Earth
Registered: 2012-11-29
Posts: 3,247

### Re: Let's make triangular numbers.

4851
5000-(12^2+5)

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## #99 2012-12-28 12:03:55

bobbym
From: Bumpkinland
Registered: 2009-04-12
Posts: 106,389

### Re: Let's make triangular numbers.

4950 =2 x 35^2 + 50^2

In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
No great discovery was ever made without a bold guess.

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## #100 2012-12-28 16:44:37

mathaholic
Member
From: Earth
Registered: 2012-11-29
Posts: 3,247

### Re: Let's make triangular numbers.

5050!

Last edited by julianthemath (2012-12-28 16:45:11)

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