Uploaded January 2024 | Updated September 2026, 3 weeks ago

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Featuring Sophie Maclean. See brilliant.org/numberphile for Brilliant and 20% off their premium service & 30-day trial (episode sponsor). More links & stuff in full description below ↓↓↓

Sophie Maclean is based at Kings College, London: sophiethemathmo.wordpress.com

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Pascal's Triangle: youtu.be/0iMtlus-afo

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