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

You are not logged in.

#51 2010-02-08 05:55:42

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 86,302

Re: Add 13 more and post it forever.

663 = 2^2 - 3^2 - 7^2 - 8^2 - 11^3 - 15^3 + 8^5 - 12^5 - 14^5 + 15^5


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.

Offline

#52 2010-02-08 06:05:09

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

Re: Add 13 more and post it forever.

676
676
676 = 125 + 131 + 119 + 62 + 63 + 44 + 51 + 81
676
676


igloo myrtilles fourmis

Offline

#53 2010-02-08 15:12:45

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 86,302

Re: Add 13 more and post it forever.

Just 689, fooled ya!


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.

Offline

#54 2010-02-09 10:57:07

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

Re: Add 13 more and post it forever.




igloo myrtilles fourmis

Offline

#55 2010-02-09 11:40:45

phrontister
Real Member
From: The Land of Tomorrow
Registered: 2009-07-12
Posts: 3,847

Re: Add 13 more and post it forever.

715:

7 + 1 + 5 = 13
715 = the sum of 13*1, 13*2, 13*3, 13*4...13*10
715 = the sum of the digits of the first 58 answers (and 5 + 8 = 13)

Last edited by phrontister (2010-02-09 11:42:27)


"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

Offline

#56 2010-02-09 13:34:35

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

Re: Add 13 more and post it forever.

728
728
728


igloo myrtilles fourmis

Offline

#57 2010-02-09 13:41:13

d1whohatesmath
Member
Registered: 2010-02-08
Posts: 26

Re: Add 13 more and post it forever.

728
=13
____
741

Offline

#58 2010-02-09 14:19:29

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

Re: Add 13 more and post it forever.

7  4   1
+  1   3
______
7  5  4


igloo myrtilles fourmis

Offline

#59 2010-02-09 15:47:55

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 86,302

Re: Add 13 more and post it forever.

767 - a really big plane.

and

767 = 2^2 - 3^2 - 6^2 - 11^2 - 12^2 - 13^3 - 17^3 -8^5 -9^5 + 10^5


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.

Offline

#60 2010-02-10 08:58:19

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

Re: Add 13 more and post it forever.

780
780
780 = 13 x 60
780
780


igloo myrtilles fourmis

Offline

#61 2010-02-10 15:22:25

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 86,302

Re: Add 13 more and post it forever.

793 = -2^2 + 3^2 + 6^2 - 8^2 - 12^2 - 12^3 - 17^3 - 8^5 - 12^5 - 15^5 + 16^5


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.

Offline

#62 2010-02-11 16:02:32

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

Re: Add 13 more and post it forever.

806
806
806
806
806
806


igloo myrtilles fourmis

Offline

#63 2010-02-11 18:18:38

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 86,302

Re: Add 13 more and post it forever.

819


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.

Offline

#64 2010-02-14 10:28:03

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

Re: Add 13 more and post it forever.

832
832
832
832
832
832


igloo myrtilles fourmis

Offline

#65 2010-02-14 10:38:32

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 86,302

Re: Add 13 more and post it forever.

845

845 = 10^5 - 2^2 - 4^2 -8^2 -12^2 -13^3 -17^3 -8^5 - 9^5


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.

Offline

#66 2010-02-16 08:11:06

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

Re: Add 13 more and post it forever.

858
858
858
858
858
858


igloo myrtilles fourmis

Offline

#67 2010-02-16 08:31:09

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 86,302

Re: Add 13 more and post it forever.

3^2 + 6^2 + 10^2 + 12^2 + 15^2 + 19^2 - 2^2 = 871


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.

Offline

#68 2010-02-16 12:28:45

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

Re: Add 13 more and post it forever.

884
884
884
884
884
884


igloo myrtilles fourmis

Offline

#69 2010-02-16 12:34:30

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 86,302

Re: Add 13 more and post it forever.

900 - 3 = 897


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.

Offline

#70 2010-02-16 12:47:31

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

Re: Add 13 more and post it forever.

900 + 10 = 910
910
910
910
910
910
910


igloo myrtilles fourmis

Offline

#71 2010-02-16 13:15:56

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 86,302

Re: Add 13 more and post it forever.

923 = 4^5 - 2^2 - 4^2 - 9^2


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.

Offline

#72 2010-02-17 08:30:30

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

Re: Add 13 more and post it forever.

936
936
936
936
936
936
936
936

Last edited by John E. Franklin (2010-02-17 08:30:53)


igloo myrtilles fourmis

Offline

#73 2010-02-17 12:58:23

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 86,302

Re: Add 13 more and post it forever.

949 a palindrome!

4^5 + 5^2 - 10^2 = 949


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.

Offline

#74 2010-02-18 10:23:21

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

Re: Add 13 more and post it forever.

962
962
962
962
962
962
962
962


igloo myrtilles fourmis

Offline

#75 2010-02-18 12:25:27

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 86,302

Re: Add 13 more and post it forever.

975 = 4^5 - 7^2


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.

Offline

Board footer

Powered by FluxBB