Is a three-storied thing 1991^ odd or even : PS Archive
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Is a three-storied thing 1991^ odd or even

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Is a three-storied thing 1991^ odd or even [#permalink]

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07 Oct 2003, 09:53
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Is a three-storied thing 1991^[91^19] odd or even?
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07 Oct 2003, 12:17
Well in this case the 1 in the unit digit always makes the answer odd.
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