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How many integers n, 5000 <= n <= 6000, have the property that the product of the digits is equal to 0?

 Jun 15, 2020
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Product of digits is 0 \(\Longleftrightarrow\) One or more of the digits are 0.

 

By principles of counting, there are 272 integers satisfying the property.

 Jun 15, 2020

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