perplexus.info :: Shapes : Distinct Triangle Determination

Distinct Triangle Determination (Posted on 2015-12-16)

Each of A, B and C is a distinct positive divisor of 2016 (including 1 and itself).

Determine the total number of triangles having sides A, B and C.

No Solution Yet Submitted by K Sengupta

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re: computer solution (Spoiler)

| Comment 2 of 3 |

(In reply to computer solution by Charlie)

This computer says 524 (?)

test[{a_,b_,c_}]:=a+b>c&&b+c>a&&c+a>b;
Length[Select[Subsets[Divisors[2016],{3}],test]]
524

Posted by Harry on 2015-12-17 09:17:31

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