Most Popular Math Fun Facts

• One, Two, Three, Pi 4.63
• Two Envelopes Paradox 4.60
• Farmers and Pesky Birds 4.59
• Sum of Cubes 4.55
• Proof with Words 4.54
• Hailstone Numbers 4.53
• Equidecomposability 4.53
• Divisibility by Seven 4.51
• Nine Point Circle 4.43
• Sperner's Lemma 4.41
• i to the i is a Real Number 4.39
• Domino and Square Tilings 4.39
• Greedy to Avoid Progressions 4.39
• Gamma Function 4.38
• Social Choice and the Condorcet Paradox 4.38
• Visual Multiplication with Lines 4.37
• Memorizing Pi 4.37
• Six Degrees of Separation 4.37
• Space-filling Curves 4.36
• Goldbach's Conjecture 4.34
• Face Derivatives and Computer Vision 4.34
• Pythagorean Triples 4.34
• Inchworm on a Rubber Rope 4.33
• Hyperbolic Geometry 4.33
• One Equals Zero! 4.32
• Wallis' Formula 4.31
• Sliding Chords 4.31
• Repeating Digits 4.31
• All Numbers are Interesting 4.30
• Prime Number Theorem 4.30
• Multiplication by 111 4.30
• Thinned-Out Harmonic Series 4.29
• Pick's Theorem 4.28
• Mug Trick 4.27
• Are Coins Fair? 4.27
• Klein Bottle 4.27
• Eccentricity of Conics 4.26
• Polyhedral Face Vectors 4.26
• Making History by Card Shuffling 4.26
• Suspended Rope Trick 4.26

• Though not among the most popular, your Fun Fact now rates: Sphere Eversions 3.90

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