John D. Cook johndcook.com

More on Carmichael

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Differential equation on a doughnut

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Zcash price doubled

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RSA with multiple primes

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True growth rate accounting for inflation

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A quiet change to RSA

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Fermat primes and tangent numbers

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Memorizing a list of seed words

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10x vs 10%

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Time needed to factor large integers

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log log x

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Fitting a double exponential function to three points

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Extrapolating quantum factoring

johndcook.com·32w·Hacker News

Post-quantum RSA with gargantuan keys

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Conway’s pinwheel tiling

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Silent Payments

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An inverse problem for the quadratic equation

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Inverting series that are flat at zero

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Mollweide map projection and Newton’s method

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1420 MHz

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