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.
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).
Sort a list of complex numbers based on far they are from the origin.
Find a subset that divides the vector into equal halves
Area of an equilateral triangle
Divisible by 2
BLOCK x3 (Version 1)
Divisors for big integer
Without the French accent please!
BLOCK x3 (Version 4)
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