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Triangular Triples (Posted on 2007-04-21) Difficulty: 3 of 5
Tom, Dick and Harry were searching for 3-digit triangular numbers (numbers of the form k*(k+1)/2) that are themselves each the product of three different triangular numbers greater than 1 (so 1*3*15 = 45 doesn't count, nor does 3*10*10 = 300 because of the duplicated 10).

Each of them found a different triangular number. One of the triangular factors is found only in Harry's solution. Another of the triangular factors is found only in Tom's solution.

What are the three triangular factors making up Dick's solution?

See The Solution Submitted by Charlie    
Rating: 4.0000 (1 votes)

Comments: ( You must be logged in to post comments.)
  Subject Author Date
re(2): only one solution?vj2007-04-23 11:13:16
re: only one solution?Charlie2007-04-23 10:19:00
only one solution?vj2007-04-23 09:33:13
re: Triangles allbrianjn2007-04-21 21:19:33
SolutionTriangles allbrianjn2007-04-21 21:16:13
sourceRobby Goetschalckx2007-04-21 16:23:02
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