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CVM 2020
Problem 1+
CVM 2020 - RE - P1
CVM 2020 - RE - P1
Source: CVM 2020
July 16, 2020
number theory
Problem Statement
Given the number
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⋯
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\overline{a_1a_2\cdots a_n}
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such that
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∣
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\overline{a_n\cdots a_2a_1}\mid \overline{a_1a_2\cdots a_n}
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∣
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Then show
(
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)
(
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(\overline{a_1a_2\cdots a_n})(\overline{a_n\cdots a_2a_1})
(
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)
(
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)
is a perfect square. Proposed by Ezra Guerrero, Francisco Morazan
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