Math Is Fun Forum
  Discussion about math, puzzles, games and fun.   Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ • π ƒ -¹ ² ³ °

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#1 2013-04-19 13:18:39

mathaholic
Member
From: Juliania
Registered: 2012-11-29
Posts: 2,845
Website

Add 1, then post a letter.

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


"Double the fun, double the thrill, double the coolness" - Julianthewiki

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#2 2013-04-20 00:44:23

Nehushtan
Member
From: London
Registered: 2013-03-09
Posts: 613
Website

Re: Add 1, then post a letter.

Actually 1 is a triangular number.

2 – P


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#3 2013-04-20 15:47:50

mathaholic
Member
From: Juliania
Registered: 2012-11-29
Posts: 2,845
Website

Re: Add 1, then post a letter.

Oh, yeah. Why did I forget ?

3 - P


"Double the fun, double the thrill, double the coolness" - Julianthewiki

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#4 2013-08-27 16:49:44

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

Re: Add 1, then post a letter.

4-c

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#5 2013-08-27 22:09:35

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 86,636

Re: Add 1, then post a letter.

5 P


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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#6 2013-09-27 16:45:01

mathaholic
Member
From: Juliania
Registered: 2012-11-29
Posts: 2,845
Website

Re: Add 1, then post a letter.

6 T

1 is triangular
3 " "
6 " "


"Double the fun, double the thrill, double the coolness" - Julianthewiki

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#7 2013-09-27 21:37:23

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 86,636

Re: Add 1, then post a letter.

7P


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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#8 2013-09-28 12:10:41

mathaholic
Member
From: Juliania
Registered: 2012-11-29
Posts: 2,845
Website

Re: Add 1, then post a letter.

8C

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

8 is also a vertical infinity!


"Double the fun, double the thrill, double the coolness" - Julianthewiki

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#9 2013-09-28 12:13:20

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 86,636

Re: Add 1, then post a letter.

9C and a square number too.


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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