Q: Which is the smallest 9 digit odd number?

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117

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.

No, zero is not the smallest single didget number. There negative single digit number from -1 through -9

Related questions

As the number is odd it must end in an odd digit; the odd digits are 1, 3, 5, 7, 9 and the smallest is 1 which is the sum of 1 and 0. Thus the smallest 7-digit number which meets your criteria is 1,001,001

117

101

What is the least possible 6 digit odd number with only using 1 to 9 once

The smallest number that is both odd and composite is 9, which is divisible by 3. The odd numbers are 1, 3, 5, 7, 9, 11, ..., and 1, 3, 5, and 7 are all prime. It is 9 that is the smallest odd composite number.

It is the digit 9

9

987654321

9

-9

10 is the smallest 2-digit whole number.

9