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Esteban Crespi's user avatar
Esteban Crespi's user avatar
Esteban Crespi's user avatar
Esteban Crespi
  • Member for 14 years, 1 month
  • Last seen more than 3 years ago
  • Madrid, Spain
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53
Show that product of primes, $\prod_{k=1}^{\pi(n)} p_k < 4^n$
27
Crazy pattern in the simple continued fraction for $\sum_{k=1}^\infty \frac{1}{(2^k)!}$
18
Generalizing Ramanujan's proof of Bertrand's Postulate: Can Ramanujan's approach be used to show a prime between $4x$ and $5x$ for $x \ge 3$
17
Greatest common divisor of algebraic integers
16
Congruence for the number of points in the elliptic curve $y^2 = x^3+b \pmod{p}$