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19 August, 14:15

Find the smallest distinct positive numbers that provide a counterexample to show the statement is false.

when any number is multiplied by 6 and the digits of the answer are added, the sum will be divisible by 6.

The counterexample is ___.

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  1. 19 August, 17:02
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    You coulf d be a genius and instantly see the pattern and answer (I can't), or work out all the possible numbers! Since they want "smallest distinct positive numbers", that would be 1-9:

    1 x 6 = 6

    6/6 = 1

    2 x 6 = 12

    (1+2) / 6 = 1/2

    3 x 6 = 18

    (1+8) / 6 = 3/2

    4 x 6 = 24

    (2+4) / 6 = 1

    ... and so on.

    You can that not all final numbers are divisible by 6! Like those that are fractions.
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