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**mathaholic****Member**- From: Earth
- Registered: 2012-11-29
- Posts: 3,251

Start with 1, then add 1, then think of what letter it belongs to.

Letters :

T - Triangular number

P - Prime number

C - Composite number

SQ - Squimintrius number

http://www.mathisfunforum.com/viewtopic.php?id=19233

OJ - Other Julianthemath number

http://www.mathisfunforum.com/viewtopic.php?id=19230

http://www.mathisfunforum.com/viewtopic.php?id=19220 *Already discovered

Example

1 N

Meaning : Nothing from the list

2 P

2 is a prime number

Okay? Start!

**1** N

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**mathaholic****Member**- From: Earth
- Registered: 2012-11-29
- Posts: 3,251

Oh, yeah. Why did I forget ?

3 - P

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**magicschoolbus123****Member**- Registered: 2013-08-15
- Posts: 18

4-c

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**bobbym****bumpkin**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 108,408

5 P

**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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**mathaholic****Member**- From: Earth
- Registered: 2012-11-29
- Posts: 3,251

6 T

1 is triangular

3 " "

6 " "

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**bobbym****bumpkin**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 108,408

7P

**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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**mathaholic****Member**- From: Earth
- Registered: 2012-11-29
- Posts: 3,251

8C

8 is composite because of its factors: 1, 2, 4, 8

8 is also a vertical infinity!

Mathaholic | 10th most active poster | Maker of the 350,000th post | Person | rrr's classmate

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**bobbym****bumpkin**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 108,408

9C and a square number too.

**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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