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use 6 of the digits from 1 to 9 to make each number. use each digit only once

the greatest possible number with 3 ten thousands
( I don't get this one at all)

  • math -

    The "3 ten thousands" part means that your number will be

    _3_,_ _ _

    Now fill in the rest of the numbers with the largest digits.


  • math -

    The way I interpret your question:

    You want a 6 digit number, no zeros, where the ten thousand position is a 3
    eg. 436,127, or ?3?,???

    if that is the case, the question is quite simple.

    = 15120
    = the total number of such numbers

    the largest such number would of course be

  • math -


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