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© 1999-2010 by Francis Edward Su

# Most Popular Math Fun Facts

... sorted by recent user ratings and interest.

 Euler's Product Formula 4.63 Hailstone Numbers 4.61 Finding the N-th digit of Pi 4.56 Area of an Ellipse 4.51 Magic Squares, indeed! 4.51 Gabriel's Trumpet 4.46 Four Fours Problem 4.45 Buffon Needle Problem 4.44 Sum of Cubes and Beyond 4.43 How GPS Works 4.42 Spherical Bands 4.42 Birthday Problem 4.42 Products of Sums of Two Squares 4.42 Squares Ending in 5 4.41 Morley's Theorem 4.41 Largest Known Primes 4.41 Area of a Circle or Regular Polygon 4.40 Right Double Cone 4.40 Koch Snowflake 4.39 Brouwer Fixed Point Theorem 4.38 Koch Tetrahedron 4.38 One Equals Zero: Integral Form 4.38 Repunit Fun 4.38 Powers of Ten in Base Two and Five 4.37 Impossible Integral? 4.37 Whiffle Ball 4.37 Greedy to Avoid Progressions 4.37 Hugging the Equator 4.37 Rolling Polygons 4.37 Farmers and Pesky Birds 4.37 Envy-free Cake Division 4.36 Proofs without Words 4.36 Spherical Pythagorean Theorem 4.36 Ordinal Numbers 4.36 Devil's Staircase 4.35 Kaprekar's Constant 4.35 Riemann Hypothesis 4.35 Sphere Eversions 4.35 Inchworm on a Rubber Rope 4.35 Are Coins Fair? 4.35 Though not among the most popular, your Fun Fact now rates: Medical Tests and Bayes' Theorem 4.22 In addition to these, there are 190 more Fun Fact files. See a random Math Fun Fact. Also available are a list of recent Math Fun Facts, or a list of all Math Fun Facts.

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