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Formula for the nth Triangular Number:
t(n) = 1/2n(n + 1) OR t(n) = (n2 + n)/2
t(0) = 0
t(1) = 1
t(2) = 3
t(3) = 6
t(4) = 10
t(5) = 15
t(6) = 21
t(7) = 28
t(8) = 36
t(9) = 45
t(10) = 55
t(11) = 66
t(12) = 78
t(13) = 91
t(14) = 104
t(15) = 120
For a more extensive list, or for more any more information about the Triangular Numbers, type "Triangular Numbers" into Google. You'll find lots of helpful websites there.
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∙ 13y ago
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List all the triangular numbers up to 36?
1, 3, 6, 10, 15, 21, 28, 36
What are the triangular numbers up to a hundred?
1,3,6,10,15,21,28,36,45,47,66,78,91,95
What are all the triangular numbers up to 200?
0,1,3,6,10,15,21,28,36,45,56,68,81,95,110,126,143,161,180,200. That's all the triangular numbers up to 200! I hope that's helped anyone with any thing.
What 2 triangular numbers add up to 43?
45
What 2 numbers multiply to 120 and add up to -14?
None of the factor pairs of 120 add up to -14. If that was -120, you could use -20 and 6.
A list of triangular numbers up to 166?
0, 1, 3, 6, 10, 15, 21, 28, 36, 45, 55, 66, 78, 91, 105, 120, 136, 153
List all the triangular numbers up to 36?
1, 3, 6, 10, 15, 21, 28, 36
What are the triangular numbers up to a hundred?
1,3,6,10,15,21,28,36,45,47,66,78,91,95
What are all the triangular numbers up to 200?
0,1,3,6,10,15,21,28,36,45,56,68,81,95,110,126,143,161,180,200. That's all the triangular numbers up to 200! I hope that's helped anyone with any thing.
What 2 triangular numbers add up to 43?
45
What are the triangular numbers up to ten thousand?
1'3'10 etc;
What two triangle numbers make thirty eight?
28 and 10 are both triangular numbers and add up to 38
A list of square numbers up to 120?
1 2.56 4 9 10.24 16 25 36 40.96 49 64 81 100 110.25
What 2 numbers multiply to 120 and add up to -14?
None of the factor pairs of 120 add up to -14. If that was -120, you could use -20 and 6.
What numbers add up to make 121.2?
How about: 120+1.2 = 121.2
What 2 numbers add up to -23 and multiply to 120?
-15+-8=-23 -15*-8=120
A list of square numbers up to 200?
1,4,9,16,25,36,49,64,81,100,121,144,169,196,225,256,289,324,361,400 All the square numbers up to 20!
