Be careful, I've implemented the sieve, but not all versions of it are sufficiently fast to handle the biggest numbers in the test suite.
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This doesn't use primes(x),but still feels a little like cheating.
The whole point of using the sieve is not knowing which numbers are prime. So it is no different than sum(primes).
Remove the polynomials that have positive real elements of their roots.
Back to basics 10 - Max Float
Maximum value in a matrix
Pandigital number n°3 (Inspired by Project Euler 32)
Numbers spiral diagonals (Part 1)
Find indices of diagonal elements
Permute diagonal and antidiagonal
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