document.write( "Question 1101136: How many times do write digit 1 if you write all possible natural numbers up to seven digits using digits 0 and 1 only? \n" ); document.write( "

Algebra.Com's Answer #715741 by Alan3354(69443) $\"\"$ $\"About$

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The problem statement is ambiguous, ill-defined. \n" ); document.write( "

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