Question

CM rằng : 24⁵⁴.54²⁴.2¹⁰ chia hết cho 72⁶³

Answer 1

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Answer 2

\(24^{54}.54^{24}.2^{10}=\left(2^3.3\right)^{54}.\left(3^3.2\right)^{24}.2^{10}\)\(=2^{3.54}.3^{54}.3^{3.24}.2^{24}.2^{10}\)
\(=2^{162}.3^{54}.3^{72}.2^{72}.2^{24}.2^{10}=2^{162+72+54+10}.3^{54+72}\)\(=2^{298}.3^{126}\).
\(72=3^3.2^3\)
\(72^{63}=\left(3^3.2^3\right)^{63}=3^{189}.2^{189}\)
Như vậy đề bài sai.