Video · Inca Knot Numbers – Numberphile TwitterShare on Facebook0 25 views Numberphile - December 10, 2020 Science Numberphile More Videos Base Fibonacci – Numberphile Science · 2 days ago Almost Interesting Facts about 6-7 – Numberphile Science · 3 weeks ago Why 6-7 are a Perfectly Super – Numberphile Science · 3 weeks ago Why 6-7 are a Perfectly Super – Numberphile Science · 3 weeks ago A New Way to Look at Möbius Strips – Numberphile Science · 4 weeks ago 100000001 is divisible by 17 – Numberphile Science · December 9, 2025 Closer Look at the Birthday Paradox – Numberphile Science · December 6, 2025 Polyominoes on Chessboards – Numberphile Science · December 1, 2025