Numberphile
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Polyominoes on Chessboards - Numberphile
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The Graph Reconstruction Conjecture - Numberphile
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Return of the Calculator Unboxing - Numberphile
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The Forgotten Story of Indian Calculus - Numberphile
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Schur Numbers - Numberphile
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Ordinal Numbers - Numberphile
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The Anti-Knight Killer Sudoku - Numberphile
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The Secret of the Raffle Function (epic proof) - Numberphile
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The Joy of Harshad Numbers - Numberphile
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Lord of the Commutative Rings - Numberphile
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Immense Subcubic Graphic Numbers - Numberphile
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The Holey Monster (with 934 faces) - Numberphile
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Treasure Trove (Zeeman Medal Lecture by Brady Haran) - Numberphile
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The Mind-Blowing Base 13 Function - Numberphile
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The Big Daddy of Infinite Integrals - Numberphile
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The Stein Paradox - Numberphile
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The 9-sided Enneahedron - Numberphile
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A simple equation that behaves weirdly - Numberphile
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A Problem with Infinite Hotel Keys - Numberphile
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Cardioids in Coffee Cups - Numberphile
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The Tea Lady Experiment - Numberphile
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The World's LONGEST Klein Bottle - Numberphile
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The Hyper Moser (and other Mega Numbers) - Numberphile
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A 1.58-Dimensional Object - Numberphile
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A Magic Square Breakthrough - Numberphile
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Shakespeare, Numbers, and Chronograms - Numberphile
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The Slightly Bungled Mersenne Prime Origin Story - Numberphile
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The Snakey Hexomino (unsolved Tic-Tac-Toe problem) - Numberphile
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The Frobenius Problem (and numerical semigroups) - Numberphile
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Pentominoes and other Polyominoes - Numberphile
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The Anti-Parker Square - Numberphile
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A Number to the Power of a Matrix - Numberphile
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Meeting Ernő Rubik - Numberphile
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A Fascination with Fractured Friezes - Numberphile
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Way Bigger Than Graham's Number (Goodstein Sequence) - Numberphile
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Knot Surfaces - Numberphile
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The Change from Roman Numerals - Numberphile
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The Magic of Induction - Numberphile
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Voting Paradoxes - Numberphile
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Planet Pi - Numberphile
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The Man Who Found the World's Biggest Prime - Numberphile
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An Odd Property of the Sierpiński Triangle - Numberphile
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The Prime Constant - Numberphile
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Absolute Primes - Numberphile
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The Lazy Way to Cut Pizza - Numberphile
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Pi-oneers (interview with Sinha & Saha) - Numberphile
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New Recipe for Pi - Numberphile
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The Freshman's Dream (a classic mistake) - Numberphile
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The Big X - Numberphile
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Erdős–Woods Numbers - Numberphile
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Cones are MESSED UP - Numberphile
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343867 and Tetrahedral Numbers - Numberphile
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An amazing thing about 276 - Numberphile
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Interesting 666-digit Numbers - Numberphile
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Goliath & Leviathan Numbers - Numberphile
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Apocalyptic Numbers - Numberphile
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What are these symbols? - Numberphile
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The Mystery of Hyperbolicity - Numberphile
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Catalan Numbers - Numberphile
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The Most Mathematical Sudoku - Numberphile