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Overview
An encyclopedic collection of math resources for all grades. Arithmetic games, problems, puzzles, and articles.
News
An Interesting Number
An Interesting Number: a story concerning 1729, Hardy-Ramanujan conversation and R. Feynman
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GCD of Fibonacci Numbers
a proof that the GCD of two Fibonacci Numbers is the number that corresponds to the gcd of their indices
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12 Coins in Verse
12 Coins in Verse: A verse to remember a solution to the 12 coins puzzle
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