It is either "1" or "0".
There is a philosophical dispute among mathematicians as to whether the number zero counts as a natural number. I think the Phoenicians introduced the concept of zero in written numbers, but even before them, there was always a natural concept of "one apple" and "no apple."
Therefore, I'd argue that the smallest one digit natural number is zero.
The smallest negative one digit number is -9, and the smallest positive one digit number is either 0 or 1, I'm not sure about the positive.
-8
One
-9
The smallest odd positive number is 1 (one).
The smallest three digit number is 0.01. One less than that would be -1.01.
Take the smallest 6-digit even number, then subtract one from it.
1111
1
Two versions of this question have been merged ... the one that asks forthe smallest 5-digit number, and the one that asks for the largest.If we're talking integers (whole numbers), then-- the largest 5-digit number with no repeating digits is 98,765 .-- the smallest one is 10,234 .-- If decimals are included, then the largest number is the same,but the smallest one is .01234 .
1,000,000 (one million).
1,000,000,000 (one billion).