Ivan Shishkin, The Forest Clearing

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Zita

Beginner / High school / reputation 7

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Polynomial of prime numbers Some properties on the

p

-adic valuation A cow issue An intimidating tower Even-odd equality Two equations with integer functions Des parties entières à calculer^FR Preuve de

\displaystyle n =\sum_{d\mid n}\varphi(d).

^FR How to split a chocolate bar