Smallest positive integers with digit 0,8
Find the smallest positive integer $n$ such that every digit of $15n$ is $0$ or $8$.
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HandaramTheGreat
- Posts:135
- Joined:Thu Dec 09, 2010 12:10 pm
Re: Smallest positive integers with digit 0,8
$15n$'s last digit should be $0$ to be divided by 5 and it should have three $8$ so that it can be divided by 3...
$15n=8880$
$n=592$
$15n=8880$
$n=592$
Re: Smallest positive integers with digit 0,8
Nice solution! 
"Inspiration is needed in geometry, just as much as in poetry." -- Aleksandr Pushkin
Please install LaTeX fonts in your PC for better looking equations,
learn how to write equations, and don't forget to read Forum Guide and Rules.
Please install LaTeX fonts in your PC for better looking equations,
learn how to write equations, and don't forget to read Forum Guide and Rules.
