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Advanced Numerical Elegance in Sixty-Seven
Challenging puzzle for experienced crossword solvers
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Across
  • 1. Repeating thrice; also a synonym for triplicated
  • 2. Algebraic expression composed of variables and coefficients
  • 3. Shape related to six-sided figures, common in math tiling
  • 4. Product of all positive integers up to a given number
  • 5. Function generalizing Euler’s totient in number theory
  • 8. Type of prime expressed as two to the power minus one
  • 9. Seven-sided polygon—shape of numerical significance
  • 11. Set including positive, negative whole numbers and zero
  • 15. Last theorem famously puzzled mathematicians for centuries
  • 16. Classic technique for filtering primes, named after an ancient Greek
Down
  • 6. Property describing number systems without infinitesimals
  • 7. French mathematician whose theory underpins modern algebraic structures
  • 10. Method to find greatest common divisor, named after an ancient mathematician
  • 12. Curve type fundamental in cryptographic algorithms
  • 13. Mathematical operation specifying remainder after division
  • 14. Number equal to the sum of its proper divisors
  • 17. Counts integers relatively prime to a given number
  • 18. Number indivisible except by one and itself

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