Can the number (a)19991998 (b)19991999 be written in the form $ n^{4}+m^{3}-m $, where n, m are integers?
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Tags: number theory unsolved, number theory
Can the number (a)19991998 (b)19991999 be written in the form $ n^{4}+m^{3}-m $, where n, m are integers?