Which is the smallest nine digit odd number?
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117
The greatest two-digit odd number is 99. In a two-digit number, the first digit can range from 1 to 9, and the second digit can range from 0 to 9. Since we are looking for an odd number, the second digit must be odd, limiting our options to 1, 3, 5, 7, or 9. Among these, 99 is the greatest possible two-digit odd number.
9
The smallest (arithmetically lowest) one-digit number is -9. Cubed , or (-9)3 is -27. (-9) x (-9) x (-9) = -27
Since the final digit of the number is a 9, as with any number whose final digit is 1, 3, 5, 7, or 9, 1409 is an odd number.