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8128 and Perfect Numbers
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A brief history of banned numbers
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A brief history of numerical systems - Alessandra King
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A clever way to estimate enormous numbers - Michael Mitchell
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A Hairy Problem (and a Feathery Solution)
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A negative times a negative is a ... ?
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A New Favorite Puzzle
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A new Rhombic Dodecahedron from Croatia!
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A new World’s Fastest Clapper
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