Media Summary: While observing his child play with toy blocks, C. Dudley Langford invented a puzzle that is still Do odd perfect numbers exist? Head to to start your free 30-day trial, and the first 200 people get ... How many points can you place on an n x n grid without having any three of them lie in a straight line? It turns out, we don't know ...

The Unsolved Math Problem Inspired - Detailed Analysis & Overview

While observing his child play with toy blocks, C. Dudley Langford invented a puzzle that is still Do odd perfect numbers exist? Head to to start your free 30-day trial, and the first 200 people get ... How many points can you place on an n x n grid without having any three of them lie in a straight line? It turns out, we don't know ... These are some of the famous and toughest Join my mailing list! Go to to get 84% off from this video's ... Grigori Perelman solved one of the world's hardest

Why can't you divide by zero? Neil deGrasse Tyson and Chuck Nice discuss higher dimensions, dividing by zero, and Thanks to Brilliant for sponsoring this video! Try everything Brilliant has to offer at — and get ...

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