Find the largest natural number (MEXT - Japan)

Algebra Level 3

A = log ⁡ 2 3 log ⁡ 3 4 log ⁡ 4 5 ⋯ log ⁡ 2018 2019 log ⁡ 2019 2020 \large A = \log_2 3 \log_3 4 \log_4 5 \cdots \log_{2018} 2019 \log_{2019} 2020

Find ⌊ A ⌋ \lfloor A \rfloor .

Notation: ⌊ ⋅ ⌋ \lfloor \cdot \rfloor denotes the floor function .

12 10 11 9

Samuel Nascimento by Samuel Nascimento , 24, Brazil

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Samuel Nascimento
Jul 16, 2019

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