289 research outputs found

    Near-primitive roots

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    Counting numbers in multiplicative sets: Landau versus Ramanujan

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    Numerical semigroups, cyclotomic polynomials, and Bernoulli numbers

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    Moser's mathemagical work on the equation 1^k + 2^k + ∙∙∙ + (m - 1)^k = m^k

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    Integers without large prime factors: from Ramanujan to de Bruijn

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    <p>A small survey of work done on estimating the number of integers without large prime factors up to around the year 1950 is provided. Around that time N.G. de Bruijn published results that dramatically advanced the subject and started a new era in this topic.</p&gt

    Computing higher rank primitive root densities

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    Coefficient convexity of divisors of x^n-1

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    Forbidden integer ratios of consecutive power sums

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    Products of two proportional primes

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