You should know this number theory result -- Bertrand's Postulate
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a surprisingly nice integral
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Bertrand's Paradox (with 3blue1brown) - Numberphile
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a super nice functional equation
11:30
163 and Ramanujan Constant - Numberphile
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When a genius misses an easy question
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A 1.58-Dimensional Object - Numberphile
26:08
How Google designed a smarter calculator than Apple
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