If all the numbers are the same, the set has no range. The range is zero.
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The set of rational numbers includes the set of natural numbers but they are not the same. All natural numbers are rational, not all rational numbers are natural.
There are approximately 2600 such numbers and this site is not suitable for listing them all. However, you may wish to follow the related link for all the primes in the range and remove them from the range.
SUM function
All the numbers in that range that end with 1, 3, 5, 7, or 9.
Each integer is a whole number and each whole number is an integer. So the set of all integers is the same as the set of all whole numbers. By the equivalence of sets, integers and whole numbers are the same.