Integers of a FeatherMath brain teasers require computations to solve.
In the finite set of integers 1 through 50000000, the following six integers share a characteristic that no other integers in the set share. What is the characteristic?
1, 36, 1225, 41616, 1413721, 48024900
AnswerThey are the only triangle numbers that are also squares of whole numbers.
1 = 1^2
36 = 6^2
1225 = 35^2
41616 = 204^2
1413721 = 1189^2
48024900 = 6930^2
See another brain teaser just like this one...
Or, just get a random brain teaser
If you become a registered user you can vote on this brain teaser, keep track of
which ones you have seen, and even make your own.
Back to Top