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# Questions

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### Status of Harvey Friedman’s grand conjecture?

dec 2 11 at 7:43 David Roberts 11.9k21856

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### Primes represented by two-variable quadratic polynomials

sep 16 11 at 18:23 Charles 4,189827

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### Are all primes in a PAP-3?

may 10 11 at 14:56 Charles 4,189827

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### Sum of $\sum_{k=1}^nd(k^2)$

apr 17 12 at 15:20 Micah Milinovich 3,48511023

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### Bounds on squarefree numbers

jun 2 11 at 7:08 Greg Martin 3,5061121

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### Asymptotic density of k-almost primes

jan 8 at 21:24 Roger Boyle 11

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### Analytic lower bounds on the first sign change of pi(x) - li(x)?

nov 11 at 10:42 Alexey Ustinov 1,356413

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### Who first proved that there are at least n^(1-ε) primes up to n?

may 29 10 at 8:54 Wadim Zudilin 8,69412459

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### Is there a two-variable prime-representing polynomial (in the sense of Jones-Sato-Wada-Wiens)?

oct 4 11 at 15:21 Charles 4,189827

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