Which number is an element of the whole numbers, but not an element of the natural numbers?

zero

Which number is an element of the whole numbers, but not an element of the natural numbers?

To find a number that is an element of the whole numbers but not an element of the natural numbers, we first need to understand the definitions of these two sets.

The natural numbers, also known as counting numbers, are the set of positive integers starting from 1 and going indefinitely: 1, 2, 3, 4, ...

On the other hand, the whole numbers include the natural numbers and also include zero and all negative integers: ..., -4, -3, -2, -1, 0, 1, 2, 3, ...

So, in order to find a number that belongs to the whole numbers but not the natural numbers, we need to look for a whole number that is also a negative integer or zero.

Here are some examples of numbers that satisfy this condition:
-3, -2, -1, 0

These numbers are elements of the whole numbers but are not elements of the natural numbers because they are either zero or negative.