Matches in DBpedia 2016-04 for { ?s ?p "At the 1912 International Congress of Mathematicians, Edmund Landau listed four basic problems about primes. These problems were characterised in his speech as \"unattackable at the present state of science\" and are now known as Landau's problems. They are as follows: Goldbach's conjecture: Can every even integer greater than 2 be written as the sum of two primes? Twin prime conjecture: Are there infinitely many primes p such that p + 2 is prime? Legendre's conjecture: Does there always exist at least one prime between consecutive perfect squares? Are there infinitely many primes p such that p − 1 is a perfect square? In other words: Are there infinitely many primes of the form n2 + 1? (sequence A002496 in OEIS).As of 2016, all four problems are unresolved."@en }
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- Landaus_problems abstract "At the 1912 International Congress of Mathematicians, Edmund Landau listed four basic problems about primes. These problems were characterised in his speech as \"unattackable at the present state of science\" and are now known as Landau's problems. They are as follows: Goldbach's conjecture: Can every even integer greater than 2 be written as the sum of two primes? Twin prime conjecture: Are there infinitely many primes p such that p + 2 is prime? Legendre's conjecture: Does there always exist at least one prime between consecutive perfect squares? Are there infinitely many primes p such that p − 1 is a perfect square? In other words: Are there infinitely many primes of the form n2 + 1? (sequence A002496 in OEIS).As of 2016, all four problems are unresolved.".