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UKMT Senior Mathematical Challenge, 2018

Number theory Difficulty 1.0 Junior Find the answer United Kingdom

When the following are evaluated, how many of the answers are odd numbers? $1^2,\ 2^3,\ 3^4,\ 4^5,\ 5^6$

(A) $1$ (B) $2$ (C) $3$ (D) $4$ (E) $5$

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