343867 & the Mystery of Tetrahedral Numbers 🔺🤯 | Numberphile ft. James Grime

What’s so special about 343867? In this episode of Numberphile, James Grime explores a fascinating connection between this number and the world of tetrahedral numbers—a class of figurate numbers that form 3D pyramids.

We dive into mathematical beauty, hidden patterns, and the satisfying logic behind why this number stands out in a sequence of stacking triangles. Perfect for math lovers, puzzle fans, and anyone who appreciates the elegance of numbers.