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Find, with justi cation, the smallest integer whose rst digit is 1 and which has the property
that if this digit is transferred to the end of the number, then the number is tripled

  • Math -

    A method of solution can be found here:

    It has to be understood that the "1" is moved to the end of the number, not switched with the last digit.

    It is a rather large number, as you will see.

  • Math -

    The answer given at the site I provided above is 142857. The "switched" number is 428571

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