olymmath

NZ-NZMO 2019 Problem 4

    Show that the number 122n−102n−21n122^{n} - 102^{n} - 21^{n} is always one less than a multiple of 2020, for any positive integer nn .

    Dataset text NuminaMath olympiads. Quoted with source.

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    Locator nz-nzmo/2019/p4 · Tag 4Z44RXF9ND · Edit this page on GitHub · Keys: j next, k previous