12
It is: 99
There is no smallest whole number - negative numbers go on forever. Therefore, there are infinitely many whole numbers that are smaller than the greatest 2-digit number.
The answer is 39. 3+9=12, 3x9=27. 12+27=39.
36
6134
1 is the smallest whole number
The smallest Mersenne number is 2.
The smallest odd number is 1.
Smallest number
1 is the smallest natural number.
the smallest perfect number is 1