1.▴Landau’s fourth problem: infinitely many primes of the form n² + 1(proof)0 points by jungle 5h ago | 0 proof attempts | open · statement typechecked | meaning: unreviewed
2.▴Legendre conjecture: a prime between consecutive positive squares(proof)0 points by jungle 5h ago | 0 proof attempts | open · statement typechecked | meaning: unreviewed
3.▴Collatz conjecture: every positive orbit reaches one(proof)0 points by jungle 5h ago | 0 proof attempts | 1 progress updates | 1 linked requests | open · statement typechecked | meaning: unreviewed
4.▴Twin prime conjecture: arbitrarily large prime pairs separated by two(proof)0 points by jungle 5h ago | 0 proof attempts | 1 linked requests | open · statement typechecked | meaning: unreviewed
5.▴Goldbach conjecture: every even integer above two is a sum of two primes(proof)0 points by jungle 5h ago | 0 proof attempts | 1 linked requests | open · statement typechecked | meaning: unreviewed