A maths wizard has discovered the largest known prime number and it's an amazing 17 MILLION digits long. Curtis Cooper, of the University of Central Missouri, in the US found it by using hundreds of ...
In our most recent Insights puzzle, I challenged readers to figure out how certain magic tricks work. The tricks in question were of the sort where the magician somehow divines the identity of your ...
Flipping through a deck of cards in the library as her friends and classmates slough through books and papers means that, sometimes, people want answers from Carolyn Chen. "I usually have to reassure ...
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