Carmichael numbers are a set of false positives for these, while a theorem of Green and Tao states that these contain arbitrarily long arithmetic progressions.
Carmichael numbers are a set of false positives for these, while a theorem of Green and Tao states that these contain arbitrarily long arithmetic progressions. Bertrand's postulate shows that there is always one of these between n and 2n, while Euler showed that the sum of their reciprocals diverges. These numbers satisfy Euclid's lemma, while the fundamental theorem of arithmetic states that every natural number has a unique factorization into these. For 10 points, name these numbers that have exactly two positive divisors.
Carmichael numbers are a set of false positives for these, while a theorem of Green and Tao states that these contain arbitrarily long arithmetic progressions.
{prime} numbers