For over a century, a simple yet tricky math problem had continued to baffle experts. Mathematicians struggled to find the fewest number of pieces needed to cut an equilateral triangle and rearrange ...

In each row n of the triangle, the integers from 1 to n are in alphabetical order. In the next row the number 8 would be added, and because “eight” comes before “five” in alphabetical order, it must ...

In each row n of the triangle, the integers from 1 to n are in alphabetical order. In the next row the number 8 would be added, and because “eight” comes before “five” in alphabetical order, it must ...