4 ms·> Mathematicians are interested in which natural numbers k can be expressed as a sum of three cubes. Why?by tomd3v 7y ago> Mathematicians are interested in which natural numbers k can be expressed as a sum of three cubes. Why?0-_-0 7y agoThat's a question that even Mathematics can not answerkadoban 7y agoBecause simple questions with no known simple answers are fun to study and can lead to actually useful techniques sometimes.